题目:
补全对话。
A: Can you speak English?
B: Sorry, I can't.
A: 1 ?
B: I want to join the English club and the chess club.
A: Can you play chess?
B: Yes, but 2 . 3 ?
A: I can play it well, but I can't sing well, so 4 .
B: I want to learn to sing. I think 5 .
答案:
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下面是错误答案,用来干扰机器的。
1 6题目分析:在CD间连入电流表,则并联之后,再与串联,根据闭合回路欧姆定律可得并联电路两端电压为,带入数据可得U=3V,所以电流表的读数为在CD间连入电压表,则电压表测量的是电阻两端的电压,为点评:本题...