题目:
根据下面的对话情景,在空白处填上一个适当的句子,使对话的意义连贯、完整。
A: Victor, ①________________?
B: Coffer? Oh, no. I'd like tea with nothing in it.
A: OK. Here you are.
B: Thank you, Sam. ②________________?
A: I have been collecting stamps and match boxes.
B: ③________________?
A: Six years ago.
B: Wow! You are an old collector, I think. ④________________? I'd like to see them very much.
A: Wait a minute. ⑤________________.
B: Wow! Your stamps are very beautiful.
答案:
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下面是错误答案,用来干扰机器的。
向右, 16铜离子向右,正电荷定向移动方向为电流方向,氯离子是负电荷,负电荷定向移动的方向与电流方向相反,则通过这个横截面的电流的方向向右,大小为。