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單項(xiàng)選擇題

0ur engine has a（）of 10000 horse-power.

A.liability
B.ability
C.capacity
D.responsibility

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單項(xiàng)選擇題

0ur jumbo boom（）out of use for a long time.

A.is
B.will be
C.have been
D.has been

單項(xiàng)選擇題

0ur jumbo boom can（）20 tons.

A.lift
B.rise
C.elevate
D.hoist

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