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问题 单项选择题

鼠疫的人群易感性，以下哪项是错误的()

A．普遍易感

B．可为隐性感染

C．病后免疫力不持久

D．预防接种可使易感性降低

E．预防接种后可发生隐性感染

答案

参考答案：C

选择题

They offered her a house for $100 000, _____ it was worth. [ ]

A. as much as twice

B. as twice much as

C. as twice much as

D. twice as much as

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选择题

下列词语中字形完全正确的一组是         （   ）

A．娥眉绰约迤逦豆蔻年华

B．祠堂修葺捣衣砧再接再励

C．渡口碣石天崩地坼积腋成裘

D．木屐悸动聒躁遐思冥想
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