题目内容

百日咳鲍特菌在病程何期采标本检出率最高()

A. 潜伏期
B. 卡他期
C. 痉挛期
D. 恢复期
E. 全病程

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A.At the railway stationB.At the airport.C.At the police station.

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D. At the bank.

A.numerousB.countlessC.plentifulD.sufficient

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B. countless
C. plentiful
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D. He worked there as a guide.

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