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【单选题】
当力作用在刚体上时,只要不改变力的大小与方向,则力的作用点在其作用线上移动,并不改变該力对物体的外效应,这称为力的( )A.
力的不可传递性
B.
力的任意移动性
C.
力的任意加减性
D.
力的可传递性
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举一反三
【单选题】Wh o is not the r epresentative figures of Peking Opera?
A.
Cheng Yanqiu
B.
Meng Xiaodong
C.
Mei Lanfang
D.
Xun Huisheng
【简答题】［A］figures ［B］exhibits ［C］convinces ［D］speculates
【单选题】Which of the following is TRUE regarding the tables or figures in the results section?
A.
You should interpret the numbers in the tables or figures
B.
You should explain the numbers in the tables or figures
C.
There is no need to explain the numbers in the tables or figures
【单选题】Too much of this report is ________ with out-of-date figures.
A.
taken on
B.
taken in
C.
taken up
D.
taken over
【单选题】At last they _______ three figures moving in the distance.
A.
turned out
B.
made out
C.
worked out
D.
found out
【简答题】How many four sided figures are in this diagram?
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