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【单选题】
下图是反射弧五个组成部分关系示意图,下列反射与其反射弧组成部分对应关系正确的是() 反射 反射弧的组成部分 A、 手被针刺立刻缩回 1是手臂肌肉 B、 司机看到红灯刹车 2是视神经 C、 谈虎色变 3位于脊髓 D 、 膝跳反射 4使膝盖下方韧带A.
B.
C.
D.
D
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【单选题】X射线衍射的方法是研究晶体微观结构的有效方法,其主要原因是由于下列的哪种?
A.
X射线的粒子不带电
B.
X射线的波长和晶体点阵面间距大致相当
C.
X射线可使物质电离而便于检测
D.
X射线的穿透能力强
【简答题】( )是文献最基本的形式,它可以泛指一切出版物。
【简答题】The nose is used in many popular expressions. Some people are able to lead other people by the nose. For example, if a wife leads her husband by the nose, she makes him do whatever she wants him to do...
【单选题】X射线衍射的方法是研究晶体微观结构的有效方法，其主要原因是由于下列的哪种？（）
A.
X射线的粒子不带电
B.
X射线可使物质电离而便于检测
C.
X射线的波长和晶体点阵面间距大致相当
D.
X射线的穿透能力强
【单选题】-Have you ________ been to Xiamen? -I have _____been to Xiamen [ ]
A.
ever, never
B.
never, ever
C.
ever; ever
D.
never, never
【单选题】George loves pop music very much but ________ classical music.
A.
pokes his nose into
B.
has a good nose for
C.
puts his nose in
D.
turns his nose up at
【简答题】A．The nose as an organ for breathing and smelling. B．The nose as a source for various expressions. C．The nose as an example of English idioms. D．The nose as an indication of different human feelings.
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