如图所示，当带正电的球C移近不带电的枕形金属导体时，枕形导体上的电荷移动情况是：（）

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A：枕形金属导体上的正电荷向B端移动，负电荷不移动

B：枕形金属导体上的带负电的电子向A端移动，正电荷不移动

C：枕形金属导体上的正、负电荷同时分别向B端和A端移动

D：枕形金属导体上的正、负电荷同时分别向A端和B端移动

上一题下一题 0.0难度选择题更新时间:2020-01-31 09:15:19

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B

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C

There are many festivals at our school. This month is October. In October there is a sports festival. We have the volleyball game and the basketball game during(在……期间) the festival. On October 15th，there is an English festival. On that day we have an English speech contest(演讲比赛)．On October 19th，we have a school trip. We go to Beijing with the teachers. On the last day of this month，there is a music festival. On that day we can enjoy beautiful music. It's really wonderful. Next month，there is an art festival. Students often display(展示) their pictures on that day.

	相关说法	解释
A	品红在水中扩散	分子不断运动
B	酒精和水混合后体积小于二者之和	分子之间有间隔
C	盐酸、硫酸溶液显酸性	溶液中都含有酸根离子
D	一氧化碳和二氧化碳化学性质不同	分子构成不同

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