C语言程序中,运算对象必须是整型数的运算符是______。
A.% B./ C.&& D.*
参考答案:A
解析: %为取余运算符,要求预算对象为整形数据。答案选择A。
—Listen! Kathy is playing the piano in the next room.
—It _______ not be Kathy. She has gone to Hangzhou to visit the Cross-sea Bridge. [ ]
A. can
B. must
C. need
D. shall
电话语言沟通的特点是()。
A.声音和谐有序
B.言辞得体准确
C.响铃不过三声
D.态度和蔼可亲