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【单选题】
电线型号H03VVH2-F2X0.75中第一个V表示的意思是：（）.A.
橡胶
B.
硅橡胶
C.
PVC
D.
玻纤管
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【单选题】_____ we got to the station, the train had left already.
A.
If
B.
Unless
C.
s ince
D.
When
【简答题】完形填空 The restaurant was only a quarter full when we got there. A couple in their thirties were seated about three tables away. Their _ 1 _ was a little strange and it caught my attention. I've always ...
【单选题】The meeting started at ten o’clock, but the chairman has not _________ yet.
A.
turned up
B.
turned down
C.
turned out
D.
turned off
【简答题】The senators didn ’ t expect us to ask such tough questions, and when we finally did, they got s____ and didn ’ t know what to say.
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