如排烟程序在FL100下需要打开驾驶舱,速度要求是:()
A、最大200KT
B、最大180KT
C、最大160KT
参考答案:A
(2012·杭州高二检测) Next door to ours _______, who has just returned from abroad.
A.where lives an old man
B.where does the old man live
C.lives an old man
D.does an old man live
在确定运输方式之后,如何选择运输服务商?