用WTYP-200型覆盖电缆线搞多次覆盖时,在第八段的端点上查第一段电缆上的道应在插头上的第()对上。
A.9,10
B.11,12
C.13,14
D.15,16
参考答案:D
Mike his wedding for a whole month and hopefully everything will be ready tomorrow.[ ]
A. prepares
B. is preparing
C. had prepared
D. has been preparing
什么是行为?什么是规范?