挑着月亮走 幼苗
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如有右图所示的电路中,电路消耗的总功率为40w,电阻R1为4欧,R2为6欧,电源内阻r为0.6.电源的效率为94%求:
1年前
ma mothor was ill yesterday and father went away to Beijing
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Did you put it into a _____(bake) tray?
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Where's your Dad He ( )(make) a kite in the room.号部分题问并写出什么时
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Paul's uncle is the man ( ) thought us much A where B which
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