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【单选题】
关于卵巢的周期变化,以下哪错误的A.
青春期原始卵泡开始发育
B.
每月只有一个卵泡发育成熟
C.
成熟卵泡的直径达18～23mm
D.
排卵后卵泡即成为卵泡
E.
排卵后颗粒细胞形成颗粒黄体细胞
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皮皮学刷刷变学霸
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【单选题】It is important that she ______ a record of everything she does in the experiment.
A.
keep
B.
must keep
C.
keeps
D.
will keep
【简答题】John is a bus driver. He gets up at six O'clock, eats a light (1) in a hurry, and then rushes to work. He likes his job but hates to drive in bad (2) .Rain and snow make the roads erous. John's wi...
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