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关于的功率和效率下列说法正确的是a机械的功率越小表示机械做功越慢b使用机械可以省力省距离也可以省功c机械做功越快机械效率越高d Template






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sketch 1950
sketch 5416
sketch 3088 Billy from Saw by Naulian Ciko
sketch 1226 the man
sketch 2624 Pikachu by sketchmaster
sketch 1477 123 viva l 'algerie
sketch 5157
sketch 68512

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sketch 5062
sketch 894 hmmm
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sketch 4480 ZOMBIE by Rubel Parvez
sketch 20215 Desert
sketch 5133 Jiraiya by Saiful Farizam





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