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【单选题】
一个静定的平面物体系它由四个单个物体组合而成,则该物体系能列出( )个独立平衡方程。A.
3
B.
6
C.
9
D.
12
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【简答题】已知某铜热电阻在 0 O C 时的阻值为 50 Ω,则其分度号是( )
【简答题】多肽和蛋白质类药物的分离纯化方法有哪些?
【单选题】The journalist didn't ask the question he had prepared because _______.
A.
he found the answer himself
B.
the locals would refuse to ans wer it
C.
the mayor would not be interested in it
D.
the fisherman in the hospital gave the answer
【单选题】Cartesian mathematicism refers to _____.
A.
the belief that everything in the physical world can be quantified
B.
the belief that mathematics is the basis of all science
C.
the belief that everything can be represented on the Cartesian coordinates
D.
the belief that certainty consists in clarity and freedom from contradictions
【单选题】The journalist didn't ask the question he had prepared because________.
A.
He found out the answer himself.
B.
The locals would refuse to answer it.
C.
The mayor would not be interested in it.
D.
The fisherman in the hospital gave the answer.
【简答题】物理作图的具体方法包括__________,__________,__________以及依靠克隆的基因作图。
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