This pair of glasses _______ good and new. [ ]
A. are
B. is
C. do
D. does
B
— ______ him off tomorrow, or you will regret it.
— I will.
A.To see
B.Seeing
C.If you don’t see
D.See
光缆、光纤的连接,可以采用二种方式()。
A、直接连接和固定连接
B、活动连接和卡扣连接
C、活动连接和固定连接
D、直接连接和卡扣连接