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问题 选择题

某电场的电场线如图所示，则某点电荷A和B所受电场力的大小关系是（   ）

A．FA>FB

B．FA<FB

C．FA=FB　

D．电荷正负不明无法判断

答案

答案：A

电场线的疏密表示场强的强弱，场强大的地方电荷受的力大，则A正确。

判断题

移动式货架的优点是能保证货物的先进先出、空间利用率极高、进出货时叉车或巷道堆垛机行程最短。
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阅读理解
Welcome to one of the largest collections of  footwear（鞋类）in the world that will make you green with envy. Here at the Footwear Museum you can see exhibits（展品）from all over the world. You can find out about shoes worn by everyone from the Ancient Egyptians to pop stars.
Room 1
The celebrity（名人）footwear section is probably the most popular in the entire museum. Started in the 1950s there is a wide variety of shoes and boots belonging to everyone from queens and presidents to pop stars and actors! Most visitors find the celebrities’ choice of footwear extremely interesting.
Room 2
Most of our visitors are amazed
—and shocked— by the collection of “special purpose”shoes on  exhibition here at the Museum of Footwear. For example, there are Chinese shoes made of silk, that were worn by women to tie their feet firmly to prevent them from growing too much!
Room 3
As well as shoes and boots the museum also exhibits shoe-shaped objects. The variety is unbelievable. For example, there is a metal lamp that resembles a pair of shoes, and Greek wine bottles that like legs!
The footwear Library
People come from all over the world to study in our excellent footwear library. Designers and researchers come here to look up information on anything and everything related to the subject of footwear.
小题1:Where would you find a famous singer’s shoes?
A．Room1.B．Room 2.C．Room 3D．The footwear Library
小题2:All exhibits in each room ________________  .
A．share the same themeB．have the same shape
C．are made of the same materialD．belong to the same social class
小题3:Which of the following is true according to the text?
A．The oldest exhibits in Room 1 were made in the 1950s.
B．Room 2 is the most visited place in the museum.
C．Room 3 has a richer variety of exhibits than the other two.
D．Researchers come to the Footwear Library for data.
小题4:The purpose of the text is to get more people to __________________.
A．do researchB．design shoes
C．visit the museumD．follow celebrities
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