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單項選擇題

Speed must be regulated（）no damage is done to the wharf.

A.in order to
B.so as
C.so that
D.such that

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單項選擇題

Stop（）the derrick at once, the gooseneck is bent.

A.to use
B.to operate
C.maneuvering
D.using

單項選擇題

I sounded five short blasts to warn the vessel（）the immediate danger of collision.

A.of
B.off
C.to
D.with