一个空间几何体的正视图和侧视图都是边长相等的正方形，俯视图是

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问题选择题

一个空间几何体的正视图和侧视图都是边长相等的正方形，俯视图是一个圆，那么这个几何体是（）.

A．棱柱

B．圆柱

C．圆台

D．圆锥

答案

答案：B

此几何体应是一个圆柱.正视图和侧视图都是轴截面，俯视图就是底面.

阅读理解

小题1:New York Museum is closed on ______.

A．Monday

B．Friday

C．Saturday

D．Sunday小题2:Tommy is an 8-year-old boy. He wants to visit The City Flower Show with his parents. How much will they pay?

A．75 yuan.

B．100 yuan.

C．125yuan.

D．150 yuan.小题3:If you want to get more information about English Summer Camp, you can ______.

A．go to Canada

B．write to CEE/CCIEE

C．call at(010) 6606-2607

D．Send an e-mail to University of Toronto小题4:____ will give performances in Pop Music Week in Chaoyang Park.

A．Bands

B．Dancers

C．Singers

D．Both A and C小题5:Phillip, twenty years old, is not allowed(允许) to ______.

A．The City Flower Show

B．English Summer Camp

C．New York Museum

D．Pop Music Week

单项选择题

干支纪年法始于东汉，下列采用了干支纪年法的一项是( )。

A．贞观之治
B．黄道吉日
C．辛丑条约
D．安史之乱