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0N,0.01m 1 N,0.01m 2 N,0.02m 1 N,0.02m
0N 5N 10N 20N
和 的示数分别为( )A.1 N,0 B.0,1 N 2 N,1 N 1 N,1N.
0N, 0.01m 1N.,0.01m 2N.,0.02m 1N.,0.02m
10N,20N 10N,10N 10N,0 0,0
B.的示数分别为()A. 0,2.0N 2.0N,0 2.0N,4.0N 2.0N,2.0N
10N,20N 10N,10N 10N,0 0,0
10N,20N 10N,10N 10N,0 0,0
和 的示数分别为( ) A. 0,1 NB. 0,2 N 1N.,1 N 1N.,2N.
0N,0.01m 1 N,0.01m 2 N,0.02m 1 N,0.02m
和 的示数分别为 A.1N,2NB. 1N,1N 0,1N 1N.,0