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(New uses) for plastics (were found) during (the) 1950’s and 1960’s in medicine, space, research, (industrial), and architecture. A. New uses B. were found C. the D. industrial

【参考答案】

D

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When (contented), and occasionally when (hunger), cats (frequently) make a strange (sound).A. contented B. hunger C. frequently D. sound

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(To many early Americans), chicken on the table represented fancy (civilized) food and suggested (that) a farmer and his wife (has found) prosperity.A. To many early Americans B. civilizedC. that D. has found

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