题目：
| 选择方框中的句子完成对话，其中有两项多余。 | |
| A: Hi, Li Lei, where are you going to spend your winter holiday this year? B: 1______ A: How are you going to get there? B: We are going there by plane. A: 2______ B: Next Monday. A: 3______ B: Thanks. What about you? A: 4______ I'd like to go back to see those villagers. I miss them very much. B: 5______ I think you must have a good time in your hometown.
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答案：
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下面是错误答案，用来干扰机器的。
答案：C题目分析：把圆环电阻丝看做是并联式接法的变阻器，当滑片从m点经n点移动到p的过程中，圆环部分连入电路的电阻先变大后变小，根据“串反并同规律可知，与圆环有串联关系的电容器两极板间的电势差先变小后...
