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【判断题】
夏天太热,吃完中饭后立即去游泳,消暑解热。A.
正确
B.
错误
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举一反三
【单选题】During fibrillogenesis of type I collagen, the triple helix of the procollagen molecule is formed at which of the following locations?
A.
Extracellular space
B.
Golgi apparatus
C.
Nucleus
D.
Rough endoplasmic reticulum
E.
Secretory vesicles
【单选题】(2分)概率密度曲线和直方图曲线的主要区别是 ?
A.
直方图曲线的计算方法与概率密度曲线的计算方法不相同；
B.
直方图曲线的形状与概率密度曲线的形状不相同；
C.
直方图曲线上的值大于概率密度曲线；
D.
概率密度曲线的积分为1，直方图曲线的积分部位1；
【单选题】概率密度曲线和直方图曲线的主要区别是 ？
A.
概率密度曲线的积分为1，直方图曲线的积分部位1；
B.
直方图曲线上的值大于概率密度曲线；
C.
直方图曲线的形状与概率密度曲线的形状不相同；
D.
直方图曲线的计算方法与概率密度曲线的计算方法不相同；
【单选题】In the a helix, the hydrogen bonds:
A.
are roughly parallel to the axis of the helix.
B.
are roughly perpendicular to the axis of the helix.
C.
occur mainly between electronegative atoms of the R groups.
D.
occur only between some of the amino acids of the helix.
E.
occur only near the amino and carboxyl termini of the helix.
【简答题】螺旋-转角-螺旋基序(helix-turn-helix motif)
【简答题】α螺旋-转角-α螺旋基序模体(helix-turn-helix motif)
【简答题】α-螺旋(α-helix)
【单选题】Part A Directions: You will hear 10 short dialogues. For each dialogue, there is one question and four possible answers. Choose the correct answer ― A, B, C or D, and mark it in your test booklet. You...
A.
He'll ask Steven when he talks to him.
B.
He wants to make sure the weather is clear.
C.
He isn't sure how many people will go.
D.
He doesn't know if there is single room.
【简答题】螺旋-环-螺旋(helix-loop-helix)
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