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【单选题】
哪一项不符合常染色体显性遗传的特点A.
男女发病机会相等
B.
患者一般为显性纯合体
C.
患者同胞率为1/2
D.
父母无病时，子女一般不发病
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【简答题】(2019·南京、盐城模拟)The snow was falling and the roads had become erous. The schools were dismissed early, but much to my surprise, my 1 wasn’t canceled. So I went, feeling especially heroic. As far as ...
【简答题】阅读下面短文 , 从短文后各题所给的 A 、 B 、 C 和 D 四个选项中 , 选出可以填入空白处的最佳选项。 The snow was falling and the roads had become erous. The schools were dismissed early, but much to my surprise, my 1 wasn't canceled. So I ...
【简答题】(2019·南京、盐城模拟)The snow was falling and the roads had become erous. The schools were dismissed early, but much to my surprise, my 1 wasn’t canceled. So I went, feeling especially heroic. As far as ...
【单选题】Lying______ far back in the mountains, the coal had to be hauled from a deep valley.
A.
as it is
B.
as it did
C.
was it
D.
did it
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