單項(xiàng)選擇題

The gooseneck is （）. Stop using it at once.

A.bend
B.bent
C.band
D.bended

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單項(xiàng)選擇題

It’s raining. Stop （）, please.

A. work
B. to work
C. working
D. job

單項(xiàng)選擇題

You can swing the derrick to starboard side or port side. But do not exceed （）for the union purchase.

A.120°
B.90°
C.60°
D.100°