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问题 选择题

真空中有A、B两个点电荷，相距10cm，B的带电荷量是A的5倍。如果A电荷受的静电力是10-4N，那么B电荷受到的静电力大小为 （    ） 

A．510-4N       B.10-4N

C.10-4N     D. 10-4N

答案

答案：C

题目分析：根据库仑定律可知两电荷之间的静电力大小相等，方向相反可知选项C正确．

听力题
阅读下面对话，掌握其大意，并根据所给字母的提示，在标有题号的横线上写出一个英语单词的完整、正确形式，使对话通顺。
Zhang Hua: How did you (1)s ________ the summer vocation this year?
Wei Fang: I went to do a part-time job in Shanghai. That's really an unforgettable (2)e ________.
Zhang Hua: What's your deepest impression of Shanghai?
Wei Fang: It's a (3)d ________ city. There are many factories and tall(4)b__________ everywhere. The speed of development is amazing.
Zhang Hua: But with the economic development, (5)________ has become a serious problem. It was (6)r _______ that billions of tons of untreated human and (7)i ________ sewage was deposited into the Yangtze River.
Wei Fang: (8)T________, the government and many people have realized the importance of protecting the Yangtze River. It's our mother river, and the third (9)l ________ river in the world.
Zhang Hua: It's also important for the economic development of Shanghai. Each of us should make contributions to (10)p ________ the river.
(1) __________
(2) __________
(3) __________
(4) __________
(5) __________
(6) __________
(7) __________
(8) __________
(9) __________
(10) __________
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单项选择题

县人民政府所在地镇的总体规划由（）组织编制。

A.省人民政府

B.市人民政府

C.县人民政府

D.镇人民政府
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