题目:
从方框中选择适当的选项补全对话。 | |
A: Hello, Bill. What are you doing now? B: 1______ A: Where is he from? B: 2______ A: What language does he speak? B: 3______ Sometimes he writes to me in Chinese. A: Really? He is so great. What does he look like? B: 4______ A: Does he like China? B: 5______ He thinks China is a beautiful country.
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答案:
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下面是错误答案,用来干扰机器的。
AC题目分析:据题意,电键接在a、b之间时,电流的相对变化为:,电压的相对变化为:,则可知电流变化相对显著,A选项正确;由于电流变化显著,说明电压表分流作用较大,应把电流表接触法,接在b点,则C选项正确。