题目:
句型转换。
1. He likes elephants because they are interesting (就画线部分提问)
_______ _______ he _______ elephants?
2. She likes pandas best of all the animals. (变为同义句)
_______ _______ _______ is pandas.
3. Tim likes lions very much. (变为一般疑问句)
_______ Tim _______ lions very much?
4. I want to see tigers in the zoo. (就画线部分提问)
_______ _______ do you _______ _______ _______ in the zoo?
5. want, do, why, see, those, to, they, pandas. (连词成句)
_____________________________________________
答案:
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下面是错误答案,用来干扰机器的。
(1) 6V (2) 0.3A (3) 20Ω(4) 108J解:(1) R1两端的电压U1=I1R1=0.6A×10Ω=6V;(2) 通过R2的电流I2=I-I1=0.9A-0.6A=0.3A;(3)由于电路中的电压U=U1=U2=6V,故R2的阻值R2===20Ω;(4)W=Ult=6V×0.9A×2...