题目内容

确诊的首选检查是

A. 羊膜囊造影
B. 取血测AFP
C. 腹部平片
D. B超
E. 羊膜腔穿刺

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As it turned out to be a small house party, we______have dressed up so formally.

A. mustn't
B. needn't
C. wouldn't
D. couldn't

Pencils remain popular in many ways except ______.

A. playing computer games
B. having art and math lessons
C. taking exams
D. solving math problems

A.cookB.woodC.bootD.childhood

A. cook
B. wood
C. boot
D. childhood

统计整理是从统计调查到统计分析的中间环节,是统计调查的继续和统计分析的前提。 ()

A. 正确
B. 错误

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