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來,!新問題新挑戰(zhàn),,看看大家對于這個(gè)基礎(chǔ)的問題怎么看待! |
點(diǎn)評(píng)
對的,此時(shí)機(jī)械效益最高
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點(diǎn)評(píng)
哈,,我也是這么想的�,?赡艽笊竦氖澜绺覀兊牟灰粯影�
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點(diǎn)評(píng)
大俠需要再更正一下,應(yīng)該是最大
更正,,最遠(yuǎn)推力應(yīng)該是小
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