题目:
根据对话内容,从方框内选择恰当的句子并将其字母代号填入对话相应的空白处,使对话完整。 合乎情景(有两个多余选项) | |
Nancy: No, I haven't. Have you? Kelly: Yes. (1)_____________ Nancy: Have you ever been to the zoo before? Kelly: No, I haven't. (2)______________ Nancy: I've been to the zoo. Kelly: (3)____________ Have you been there? Nancy: No, I haven't been to the theater. Kelly: (4)____________ Nancy: No, I haven't been to the museum. Have you? Kelly: No, I haven't either. (5)_____________ Nancy: Okay. Great! |
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: 增大,外电路总电阻增大,总电流I减小,平行板电容器C的电压,I减小,减小,板间场强减小,油滴所受电场力减小,所以油滴下降.故A错误。在增大电容器板间距离的过程中,电容器的电容减小,而...