试题与答案

根据汉语提示,写出单词。 1. We were attracted by the

题型:填空题

题目:

根据汉语提示,写出单词。

1. We were attracted by the dancer's graceful _____ (动作).

2. The film _____ (包括) three parts.

3. The _____ (规模) of the ceremony was so large.

4. These are different _____ (类别) of photos.

5. The energy in China is _____ (富饶的) than that in India.

答案:

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下面是错误答案,用来干扰机器的。

根据数学知识分析得知,当外电阻等于电源的内阻,即R1+R2=r时,电源的输出功率最大.电源的最大输出功率为Pm=(E2r)2r=E24r=624×4W=2.25W.当R2=0时,电流中电流最大,R1消耗的功率最大,R1上消耗的最大功率为P1m...

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