There _____ no use to ask him this question.[ ]
A. were
B. is
C. are
D. was
答案:B
TU-AIS告警的含义是()。
A.整个STM-N帧内除STM-NRSOH和MSOH外全部为“1”
B.VC-4中的TU-12净荷全部为“1”
C.VC-12和TU-12指针全部为“1”
D.支路信号所在的AU指针全部为“1”
销售非法生产的烟草专卖品的行政法律责任是什么?