根据《SDH本地网光缆传输工程设计规范》，跨环转接电路，原则上要求转接的次数尽可能（）.
A.多
B.少
C.达到一定的值
D.减少到一定的值
参考答案：B
In some parts of London, missing a bus means_____ for another hour.[ ]
A. waiting
B. to wait
C. wait
D. to be waiting
— _____I stay with you?
— Well, I would rather you _____ me alone for a while. [ ]
A.Will; leave
B. Shall; leave
C. Will; left
D. Shall; left
