工程材料的检验程度，有( )三种类型。
A．免检、自检、专检
B．免检、抽检、全检
C．抽检、专检、全检
D．自检、互检、专检
参考答案：B
— It's said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang?
— Yes, it _______ him. He _______ for a week.
A．must be; has arrived here
B．maybe; has been here
C．must be; has been here
D．maybe; has arrived here
已定义以下函数： fun(char *p2, char *p1) { while((*p2=*p1)!=''\0''){ p1++;p2++; } } 此函数的功能是（ ）。
A．将p1所指字符串复制到p2所指内存空间
B．将p1所指字符串的地址赋给指针p2
C．对p1和p2两个指针所指字符串进行比较
D．检查p1和p2两个指针所指字符串中是否有'\0'
