题目内容

His speech rambled on for half an hour, but theof what he had said was that too many people had too little money.

A. material
B. purpose
C. essence
D. content

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That was a(n)remark for him to make, and all of us who knew him well didn't know why.

A. easy
B. peculiar
C. timid
D. obscure

Our knowledge of dinosaurs is whollyfrom the bones that have been found here and there buried in the ground.

A. acquired
B. retained
C. absorbed
D. sought

She wandered whether triangles, which had only three sides, wereas polygons, which she thought of as many-sided.

A. qualified
B. theorized
C. estimated
D. multiplied

There is no perfect trading system, and each of the proposed ones has its.

A. limits
B. borders
C. frontiers
D. limitations

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