武汉理工大学20秋C语言程序设计(本)-作业二参考
C语言程序设计(本)-作业二1.[单选题] 若已定义 int m=7;float k=5.5; 则表达式 k+ m%2/4 的值为( )。
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A.6.375
B.6.75
C.5.75
D.5.5
答:——D——
2.[单选题] 若有下面定义,能打印出字母'L'的语句是( )。 struct class {char name; int age; }; struct class s={"Zheng",16,"Lin",18,"Yang",19,"Guo",20};
A.printf("%c\n",s.name);
B.printf("%c\n",s.name);
C.printf("%c\n",s.name);
D.printf("%c\n",s.name);
答:——A——
3.[单选题] <p class="MsoNormal"><span lang="EN-US"><!--><v:shape id="图片_x0020_79" o:spid="_x0000_i1096" type="#_x0000_t75" style='width:184.8pt;height:111pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image074.png" o:title=""/></v:shape><!--><!----><img width="246" height="148" v:shapes="图片_x0020_79" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image074.png"><!----></span></p>
A.int
B.void
C.float
D.不确定
答:——A——
4.[单选题] 若有定义:int a=3,b=2,c=1,k; 则表达式k=a>b>c的值是( )。
A.0
B.1
C.2
D.3
答:————
5.[单选题] 以下叙述中正确的是( )
A.C源程序中注释部分可以出现在程序中任意合适的地方
B.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_101" o:spid="_x0000_i1124" type="#_x0000_t75" style='width:208.8pt;height:14.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image104.png" o:title=""/></v:shape><!--><!----><img width="278" height="19" v:shapes="图片_x0020_101" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image104.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
C.C源程序编译时注释部分的错误将被发现
D.构成C源程序的基本单位是函数,所有函数名都可以由用户命名
答:————
6.[单选题] 若有定义:int a; 则表达式( B)不能用来判断a值为奇数是“真”,偶数是“假”。
A.a%2==1
B.!(a%2)
C.a%2
D.!(a%2==0)
答:————
7.[单选题] <p class="MsoNormal"><span lang="EN-US"><!--><v:shape id="图片_x0020_43" o:spid="_x0000_i1066" type="#_x0000_t75" style='width:342.6pt;height:126.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image043.png" o:title=""/></v:shape><!--><!----><img width="457" height="169" v:shapes="图片_x0020_43" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image043.png"><!----></span></p>
A.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_44" o:spid="_x0000_i1067" type="#_x0000_t75" style='width:97.8pt;height:21.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image044.png" o:title=""/></v:shape><!--><!----><img width="130" height="29" v:shapes="图片_x0020_44" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image044.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><span style="color:white"> <o:p></o:p></span></span></p>
B.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_45" o:spid="_x0000_i1068" type="#_x0000_t75" style='width:118.8pt;height:21.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image045.png" o:title=""/></v:shape><!--><!----><img width="158" height="29" v:shapes="图片_x0020_45" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image045.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><span style="color:white"> <o:p></o:p></span></span></p>
C.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_46" o:spid="_x0000_i1069" type="#_x0000_t75" style='width:114pt;height:21pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image046.png" o:title=""/></v:shape><!--><!----><img width="152" height="28" v:shapes="图片_x0020_46" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image046.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><span style="color:white"> <o:p></o:p></span></span></p>
D.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_47" o:spid="_x0000_i1070" type="#_x0000_t75" style='width:107.4pt;height:24pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image047.png" o:title=""/></v:shape><!--><!----><img width="143" height="32" v:shapes="图片_x0020_47" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image047.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><span style="color:white"> <o:p></o:p></span></span></p>
答:————
8.[单选题] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly"><span lang="EN-US"><!--><v:shape id="图片_x0020_112" o:spid="_x0000_i1128" type="#_x0000_t75" style='width:130.8pt;height:18pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image106.png" o:title=""/></v:shape><!--><!----><img width="174" height="24" v:shapes="图片_x0020_112" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image106.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><span style="color:white"> <o:p></o:p></span></span></p>
A.函数调用
B.int型表达式
C.double型表达式
D.非法表达式
答:————
9.[单选题] 逗号表达式 (a=15,a*4),a+15 的值为( )。
A.15
B.30
C.75
D.60
答:————
10.[单选题] x的值在-20至-5之间为“真”,否则为“假”的正确逻辑表达式为( )。
A.-20<x<-5
B.x>-20 && x<-5
C.!(x>-20) && !(x<-5)
D.-5<x<-20
答:————
11.[单选题] 若有定义:int a=3; 语句a+=a-=a*a; 运行后,a的值为( )。
A.0
B.-3
C.-12
D.-6
答:————
12.[单选题] 以下程序的运行结果是( )。 void main() { int n=9; switch(n--) { default: printf("%d",n++); case 8: case 7: printf("%d ",n); break; case 6: printf("%d ",n++); case 5: printf("%d ",n); } }
A. 8
B. 7
C. 8 9
D. 8 7
答:————
13.[单选题] 有以下程序: main() { int c; while((c=getchar())!= '\n') { switch(c-'2') { case 0 : case 1 : putchar(c+4); case 2 : putchar(c+4); break; case 3 : putchar(c+3); default: putchar(c+2); break; } } printf("\n"); } 当输入:247<回车>,程序的输出结果是( )。
A.689
B.6689
C.66778
D.66887
答:————
14.[单选题] 一个C语言源程序是由( )
A.一个主程序和若干子程序组成
B.函数组成
C.若干过程组成
D.若干子程序组成
答:————
15.[单选题] 下面叙述中,错误的是( )。
A.C语言中的表达式求值,是按其运算符的优先级先高后低的次序进行
B.自增与自减运算符的结合方向为“自右至左”
C.关系运算符的优先级低于算术运算符
D.C语言算术运算符不包含模运算符“%”
答:————
16.[单选题] 在C语言中,运算符″=″和″==″的功能分别是( )
A.赋值运算和关系运算
B.关系运算和赋值运算
C.都是关系运算
D.都是赋值运算
答:————
17.[单选题] 以下程序段的运行结果是( )。 char a[]="abc ";char b[]="xyz";char c; strcpy(c,a);strcat(c,b);printf("%s",c);
A.abc
B.abc xyz
C.xyz
D.xyzabc
答:————
18.[单选题] 设已定义char s[ ]="\"Name\\Address\023\n";,则字符串所占的字节数是( )。
A.19
B.16
C.18
D.14
答:————
19.[单选题] 下面程序的输出结果是( )。 #include <stdio.h> int num=10; func() {int num=4; return ++num; } void main() { printf("%d\n",func()); } 更多答案进 ap5u.com 南开答案q761296021
A.4
B.5
C.10
D.11
答:————
20.[单选题] 下面错误的叙述是( )。
A.预处理命令行必须位于C源程序的起始位置
B.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_157" o:spid="_x0000_i1180" type="#_x0000_t75" style='width:204.6pt;height:15pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image160.png" o:title=""/></v:shape><!--><!----><img width="273" height="20" v:shapes="图片_x0020_157" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image160.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
C.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_158" o:spid="_x0000_i1181" type="#_x0000_t75" style='width:294pt;height:15pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image161.png" o:title=""/></v:shape><!--><!----><img width="392" height="20" v:shapes="图片_x0020_158" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image161.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
D.C语言的预处理可以实现宏定义和条件编译的功能
答:————
21.[单选题] 设有说明 int x=0,y=2; 则执行 if(x=0)y=1+x; else y=x-1; 后,变量y的值是( )
A.-1
B.0
C.1
D.2
答:————
22.[单选题] 以下叙述错误的是( )
A.存放地址的变量称为指针变量
B.NULL可以赋值给任何类型的指针变量
C.一个指针变量只能指向类型相同的变量
D.两个相同类型的指针变量可以作加减运算
答:————
23.[单选题] ( )为正确的变量名。
A.-k15
B.int
C.k_5
D.k.jeep
答:————
24.[单选题] 字符数组s不能作为字符串使用的是( )
A.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_75" o:spid="_x0000_i1092" type="#_x0000_t75" style='width:101.4pt;height:19.8pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image070.png" o:title=""/></v:shape><!--><!----><img width="135" height="26" v:shapes="图片_x0020_75" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image070.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><span style="color:white"> <o:p></o:p></span></span></p>
B.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_76" o:spid="_x0000_i1093" type="#_x0000_t75" style='width:111.6pt;height:15.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image071.png" o:title=""/></v:shape><!--><!----><img width="149" height="21" v:shapes="图片_x0020_76" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image071.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><span style="color:white"> <o:p></o:p></span></span></p>
C.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_77" o:spid="_x0000_i1094" type="#_x0000_t75" style='width:219.6pt;height:18.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image072.png" o:title=""/></v:shape><!--><!----><img width="293" height="25" v:shapes="图片_x0020_77" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image072.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><span style="color:white"> <o:p></o:p></span></span></p>
D.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_78" o:spid="_x0000_i1095" type="#_x0000_t75" style='width:218.4pt;height:18pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image073.png" o:title=""/></v:shape><!--><!----><img width="291" height="24" v:shapes="图片_x0020_78" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image073.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><span style="color:white"> <o:p></o:p></span></span></p>
答:————
25.[单选题] ( )是关于C语言数据类型的正确叙述。
A.变量必须先定义后使用
B.不允许使用空类型
C.枚举类型不是基本类型
D.数组并不是构造类型
答:————
26.[单选题] <p class="MsoNormal"><span lang="EN-US"><!--><v:shape id="图片_x0020_41" o:spid="_x0000_i1064" type="#_x0000_t75" style='width:210pt;height:158.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image041.png" o:title=""/></v:shape><!--><!----><img width="280" height="211" v:shapes="图片_x0020_41" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image041.png"><!----></span></p>
A.计算文件wj.txt的起始地址
B.计算文件wj.txt的终止地址
C.计算文件wj.txt的长度
D.将文件指针定位到文件末尾
答:————
27.[单选题] 表达式2+sqrt(16.0)/4结果的数据类型是( )。
A.double
B.int
C.char
D.void
答:————
28.[单选题] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly"><span lang="EN-US"><!--><v:shape id="图片_x0020_101" o:spid="_x0000_i1117" type="#_x0000_t75" style='width:201pt;height:21.6pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image095.png" o:title=""/></v:shape><!--><!----><img width="268" height="29" v:shapes="图片_x0020_101" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image095.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><span style="color:white"> <o:p></o:p></span></span></p>
A.指向一维数组的指针变量
B.指向二维数组的指针变量
C.指向一个整型变量的指针变量
D.指向整型函数的指针变量
答:————
29.[单选题] 若有函数定义: int func() {static int m=0; return m++; } 以下程序段运行后屏幕输出为( )。 int i; for(i=1;i<=4;i++) func(); printf("%d",func());
A.0
B.1
C.4
D.5
答:————
30.[单选题] 以下程序的运行结果是( )。 func(int a,int b) {int c; c=(a>b)?(a-b):(a+b); return(c);} main() { int x=7,y=3; printf("%d\n",func(x,y));}
A.3
B.4
C.7
D.10
答:————
31.[单选题] 下列C语言合法的数据类型关键字是( )。
A.Double
B.unsigned
C.integer
D.Char
答:————
32.[单选题] 以下程序段运行后s的值是( )。 int a={1,2,3,4,5,1,2,3,4}; int i,j,s=1; for(i=0;i<3;i++) for(j=i+1;j<3;j++) s+=a;
A.6
B.120
C.7
D.240
答:————
33.[单选题] 若有定义:int a=6;则语句 a*=a-=a/=3; 运行后,a的值是( )。
A.10
B.0
C.34
D.24
答:————
34.[单选题] 以下叙述中正确的是( )。
A.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_123" o:spid="_x0000_i1146" type="#_x0000_t75" style='width:240pt;height:15pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image126.png" o:title=""/></v:shape><!--><!----><img width="320" height="20" v:shapes="图片_x0020_123" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image126.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
B.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_124" o:spid="_x0000_i1147" type="#_x0000_t75" style='width:254.4pt;height:16.2pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image127.png" o:title=""/></v:shape><!--><!----><img width="339" height="22" v:shapes="图片_x0020_124" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image127.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
C.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_125" o:spid="_x0000_i1148" type="#_x0000_t75" style='width:280.8pt;height:17.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image128.png" o:title=""/></v:shape><!--><!----><img width="374" height="23" v:shapes="图片_x0020_125" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image128.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
D.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_126" o:spid="_x0000_i1149" type="#_x0000_t75" style='width:278.4pt;height:16.2pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image129.png" o:title=""/></v:shape><!--><!----><img width="371" height="22" v:shapes="图片_x0020_126" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image129.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
答:————
35.[单选题] 语句 k=(m=5,n=++m); 运行之后,变量k、m、n的值依次为( )。
A.5,5,6
B.5,6,5
C.6,6,5
D.6,6,6
答:————
36.[单选题] 构成C源程序的基本单位是( )
A.语句
B.变量
C.运算符
D.函数
答:————
37.[单选题] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly"><span lang="EN-US"><!--><v:shape id="图片_x0020_140" o:spid="_x0000_i1163" type="#_x0000_t75" style='width:370.8pt;height:19.8pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image143.png" o:title=""/></v:shape><!--><!----><img width="494" height="26" v:shapes="图片_x0020_140" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image143.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><o:p></o:p></span></p>
A.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_141" o:spid="_x0000_i1164" type="#_x0000_t75" style='width:110.4pt;height:17.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image144.png" o:title=""/></v:shape><!--><!----><img width="147" height="23" v:shapes="图片_x0020_141" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image144.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
B.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_142" o:spid="_x0000_i1165" type="#_x0000_t75" style='width:104.4pt;height:15pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image145.png" o:title=""/></v:shape><!--><!----><img width="139" height="20" v:shapes="图片_x0020_142" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image145.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
C.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_143" o:spid="_x0000_i1166" type="#_x0000_t75" style='width:113.4pt;height:20.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image146.png" o:title=""/></v:shape><!--><!----><img width="151" height="27" v:shapes="图片_x0020_143" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image146.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
D.<p class="MsoNormal" style="display:inline;"><span lang="EN-US"><!--><v:shape id="图片_x0020_144" o:spid="_x0000_i1167" type="#_x0000_t75" style='width:112.8pt;height:16.2pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy01-60.files/image147.png" o:title=""/></v:shape><!--><!----><img width="150" height="22" v:shapes="图片_x0020_144" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy01-60.files/image147.png"><!----></span><span lang="EN-US" style="font-size:12.0pt"><o:p></o:p></span></p>
答:————
38.[单选题] 下面程序的运行结果是( )。 #include <stdio.h> main() {FILE *fp; int a=2,b=4,c=6,k,n; fp=fopen("test.dat","w"); fprintf(fp,"%d\n",a); fprintf(fp,"%d%d\n",b,c); fclose(fp); fp=fopen("test.dat","r"); fscanf(fp,"%d%*d%d",&k,&n); printf("%d%d\n",k,n); fclose(fp); }
A.24
B.26
C.42
D.62
答:————
39.[单选题] 以下程序运行后,文件test.txt的内容是( )。 #include <stdio.h> main() {FILE *fp; char str[]={"first","second"}; fp = fopen("test.txt", "w"); if(fp!=NULL) fprintf(fp,"%s",str); fclose(fp); fp = fopen("test.txt", "w"); if(fp!=NULL) fprintf(fp,"%s",str); fclose(fp); }
A.first
B.second
C.first second
D.second first
答:————
40.[单选题] <p class="MsoNormal" style="line-height:20.0pt;mso-line-height-rule:exactly"><span lang="EN-US"><!--><v:shape id="图片_x0020_40" o:spid="_x0000_i1063" type="#_x0000_t75" style='width:415.2pt;height:17.4pt; mso-position-horizontal-relative:page;mso-position-vertical-relative:page'> <v:imagedata src="cyy02-60.files/image040.png" o:title=""/></v:shape><!--><!----><img width="554" height="23" v:shapes="图片_x0020_40" src="http://wljy.whut.edu.cn/uploadfiles/word/cyy02-60.files/image040.png"><!----></span><span lang="EN-US" style="mso-bidi-font-size:10.5pt"><span style="color:white"> <o:p></o:p></span></span></p>
A.1 2
B.2 3
C.3 3
D.3 4
答:————
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