ILS包括()。
A.LOC/GS
B.LOC/DME
C.LOC/GS/MB
D.LOC/GS/VOR
参考答案:C
我国历史上第一个王朝是[ ]
A、夏
B、商
C、西周
D、秦朝
Mr. Green told us____ too much time____ reading novels.
A.don’t take; on
B.not to take; in
C.not to spend; in
D.don’t to spend; on