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【判断题】
等密度梯度离心适于分离大小相同密度不同的物质。A.
正确
B.
错误
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参考解析：
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举一反三
【单选题】关于子宫复旧错误的描述
A.
A、 产后 2 ～ 3d 宫颈口可容 2 指
B.
产后 4 周宫颈完全恢复正常形态
C.
子宫 4 周恢复至非孕期大小
D.
子宫重量约为 50g
E.
产后 10d 子宫降至骨盆腔内
【单选题】关于子宫复旧错误的描述
A.
产后 2 ～ 3d 宫颈口可容 2 指
B.
产后 4 周宫颈完全恢复正常形态
C.
子宫重量约为 50g
D.
产后 10d 子宫降至骨盆腔内
【单选题】Researchers investigating brain size and mental ability say their work offers evidence that education protects the mind from the brain' s physical deterioration. It is known that the brain shrinks as ...
A.
age
B.
education
C.
health
D.
exercise
【单选题】Researchers investigating brain size and mental ability say their work offers evidence that education protects the mind from the brain's physical deterioration. It is known that the brain shrinks as t...
A.
age
B.
education
C.
health
D.
exercise
【简答题】Researchers investigating brain size and mental ability say their work offers evidence that education protects the mind from the brain's physical deterioration. It is known that the brain shrinks as t...
【单选题】Researchers investigating brain size and mental ability say their work offers evidence that education protects the mind from the brain's physical deterioration. It is known that the brain shrinks as t...
A.
age
B.
education
C.
health
D.
exercise
【单选题】关于子宫复旧错误的描述
A.
产后2~3d宫颈口可容2指
B.
产后4周宫颈完全恢复正常形态
C.
子宫4周恢复至非孕期大小
D.
子宫重量约为50g
E.
产后10d子宫降至骨盆腔内
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