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【单选题】
关于月经周期，正确的是（）A.
月经周期的长短，主要与卵泡期有关
B.
月经血可凝固，多伴有小血块
C.
月经来潮表明卵巢有排卵，且未发生受精和孕卵着床
D.
月经时子宫内膜从基底部剥脱
E.
正常月经量约为100ml
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举一反三
【单选题】He has already been living in China for twenty years, so it's possible for him to see things from the ( ) of a Chinese.
A.
perspective
B.
prospective
C.
perceptive
D.
permissive
【单选题】—What’s your math teacher like? —_________.
A.
He’s twenty-seven years old
B.
He works in our school
C.
He’s creative and outgoing
D.
He likes physics and biology
【单选题】—What's your English teacher like? —______. [ ]
A.
He's twenty-seven years old
B.
He works in our school
C.
He's creative and outgoing
D.
He likes physics and biology
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