相关考题
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单项选择题
（）is the maximum speed of your ship?
A.How
B.Which
C.How about
D.What -
单项选择题
The fog is too thick. Don’t（）the radar.
A.switch on
B.switch off
C.close
D.open -
单项选择题
（）time will the pilot be available?
A.what
B.When
C.At what
D.At when
