试题与答案

骨盆骨折耻骨部及尾骨骨折引起膀胱、直肠破裂,应为()A.闭合性骨折 B.开放性骨折

题型:单项选择题

题目:

骨盆骨折耻骨部及尾骨骨折引起膀胱、直肠破裂,应为()

A.闭合性骨折

B.开放性骨折

C.粉碎性骨折

D.压缩性骨折

E.不稳定性骨折

答案:

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题型:阅读理解

阅读理解

       You have heard of Webster Toys. Webster have made good, safe, interesting toys for more than a

hundred years. Now, we sell them, and children play with them, in countries from New Zealand to

Norway and from Japan to Brazil. We are looking for someone to sell our toys in the

Far East. He or she, should be between the ages of thirty and forty. He should already have some years

of selling experience in world markets. He should speak English well, and at least one other Far Eastern

language.

       The person we are looking for would live in Singapore and work in one office there, but he must

travel for up to six months a year. He should know the Far East quite well. He should know how to sell

in established markets and where to find new ones. He should understand money and make more than

ever before, for himself and for Webster Toys.

       Webster want someone who can stand on his own feet. If you think you are the person we are

looking for, write to Mr. J. Sloman at our Head Office.

1. Webster are looking for a person to sell toys            .

A. in New Zealand                    

B. in Norway

C. in Brazil                            

D. in the Far East

2. The person Webster are looking for should be            .

A. thirty years of age

B. forty years of age

C. between thirty and forty years of age

D. less than thirty years of age

3. "He should already have some years of selling experience in world markets" means

"__________".

A. he has already sold things in different parts of the world for some years

B. he has sold toys for some years

C. he has sold toys all over the world for some years

D. he has already sold things for some years

4. The person Webster are looking for should speak            .

A. good English and any one other language

B. good English and a Far Eastern language

C. good English or any other language

D. good English or any other foreign language

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题型:问答题

如图所示,竖直长方形区域ABCD长4m,高3m,其中存在水平正交的匀强磁场和匀强电场,磁场垂直纸面向外,B=1T。匀强电场平行纸面,电场线如图中实线。一带电微粒以速度v = 5m/s从长方形区域的左下角A点沿AC方向射入其中,恰能做直线运动。

(1)判断匀强电场的方向,求出场强的大小。

(2)若在粒子射至对角线的某点时将磁场撤去,粒子恰好从长方形区域的D点射出,求撤去磁场时粒子离A点的距离。

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