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问题 解答题

在一块长30米，宽15米得长方形地理栽白薯，平均15平方分米栽一棵，平均每棵收白薯2.5千克，这块地共收白薯多少千克？

答案

30×15=450（平方米），

450平方米=45000平方分米，

45000÷15×2.5

=3000×2.5，

=7500（千克）．

答：这块地共收白薯7500千克．

单项选择题

宫颈糜烂是指（）

A.宫颈上皮缺如

B.宫颈溃疡

C.宫颈先天发育不良

D.宫颈鳞状上皮脱落被柱状上皮覆盖

E.宫颈陈旧裂伤外翻
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单项选择题

Why do I want to go to college No one has ever asked me  （1）  a question. But many times I have asked myself. I have（2）a whole variety of reasons.  （3） important reason is that I want to be a better man.Many things make human beings different  （4）or better than or even superior to animals.One of the most important things is（5）. If I fail to receive higher education, my education.（6） As I want to be a fully  （7）man, I must get a well-rounded education, which good colleges and universities are supposed to （8）. I know one can get educated in many ways, but colleges and universities are（9）the best places to teach me how to educate myself. Only when I am well-educated, will I be a better human being and（10） fit into society.

第（5）空应选择（）

A. education   

B. weather   

C. temperature    

D. science
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