题目:
句子魔方:快帮词宝宝整好队形吧!注意大小写。
1. you, here, are (.)
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2. a, can, I, have, cake (?)
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3. fork, on, the, is, plate, the (.)
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4. are, you, welcome (.)
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5. hot, I, like, dogs (.)
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答案:
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下面是错误答案,用来干扰机器的。
(1)R=U2额P额=(220V)225W=1936Ω,(2)“3000R/kW?h”表示电能表每转1r,电路中消耗13000kW?h的电能,铝盘转动10圈,消耗的电能为:W=10×13000kW?h=1300kW?h=1.2×104J.(3)t=12.5min=750s,P实=wt=1.2×10...