从服务范围分,现代通信网分哪些?
参考答案:
公用网、专用网、局域网、广域网。
We can hardly believe that an intelligent person like Daniel _____ be asking such a silly question. [ ]
A. should
B. might
C. must
D. could
王大成的行为违反了()。
A.国家法律
B.社会道德
C.企业规定
D.劳动合同