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單項選擇題

A 15-ton bulldozer employed caused the bilge limber boards on both sides（）.

A.serious damaged
B.seriously damage
C.serious damage
D.seriously damaged

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單項選擇題

A bad separation makes the cargo（）at its destination.

A.easier to discharge
B.more difficult to discharge
C.easier to load
D.more difficult to load

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A telegram should（）strictly according to English grammar.

A.not be written
B.be written
C.sometimes be written
D.be not written