C．0.871                                                                    D．3e-1.5

7.设int x=10,*p;,指针p指向x的正确语句是

A．p=x;                                                                      B．*p=*x;

C．*p=&x;                                                                 D．p=＆x;

8.设float a,b,c;,函数调用语句f(((a,b),a+c),5);中参数的个数是

A．1                                                                            B．2

C．3                                                                            D．4

9.设int m[]={5,4,3,2,l},i=2;,其值为l的数组元素是

A．m[i+2]                                                                  B．m[i+3]

C．m[i-l]                                                                    D．m[m[i]]

10.下列叙述正确的是

A．while语句中的循环体至少被执行一次

B．do-while语句中的循环体至少被执行一次

C．switch语句中每个case后必须有break语句

D．continue和break在循环语句中的作用是相同的

11.设char s[2*5]="1234567";,数组s的长度是

A．10                                                                         B．9

C．8                                                                            D．7

12.下列二维数组定义并初始化正确的是

A．int a[3][3]=[0,3];

B．int a[2][]={{3,4},{5,6}};

C．int a[2,3]={2,3,4,5,6,7,8,9};

D．int a[][4]={{l,2,4,5},{2,3},{3,4,9}};

13.设char s1[20]="China",s2[10]="Beijing";,执行下列语句后的输出结果是

strcat(sl,s2); print f("％s, %d\n",s1,strlen(s1));

A．China,5