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單項(xiàng)選擇題

How to dispose （） the nuclear waste is a pressing problem for scientists and politicians alike.

A.of
B.with
C.through
D.behind

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單項(xiàng)選擇題

Harry（）his pants at the seams (接縫) when he bent over.

A.sliced
B.split
C.cracked
D.broke

單項(xiàng)選擇題

There would be about 10 million other planets in the universe that could physically（）the earth.

A.resemble
B.disguise
C.imitate
D.assume