We're in class. You'd better not _____.[ ]
A. talk
B. talking
C. talked
D. to talk
答案:A
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性。()
A.
B.
C.
D.
C++语言中关键字运算符有new,delete和【 】。