某土层压缩系数为0.50MPa-1，天然孔隙比为0.8，土层厚1m，已知该

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问题单项选择题

某土层压缩系数为0.50MPa^-1，天然孔隙比为0.8，土层厚1m，已知该土层受到的平均附加应力＝600kPa，则该土层的沉降量为（）。

A．16.3mm

B．16.7mm

C．30mm

D．33.6mm

答案

参考答案：B

解析：

本题考查公式的应用

阅读理解

阅读理解。

(This is a letter from Li Hua to Jim.)

Dear Jim,

How are you? My name is Li Hua. I'm fifteen. I have two sisters. One is Li Mei, the other is Li

Hong. My sisters and I are in No.5 Middle School. We go to school from Monday to Friday. We don't

have classes on Saturday and Sunday. I love my school. Mr. Gao is my English teacher. He is a young

man and a good teacher. I go to the English corner once a week. (一星期一次). I like English very

much. Green is my favorite color. How about you?

Let us be friends. Please write soon.

Your friend,

Li Hua

阅读上面短文，判断下列句子正误。

( )1. Li Hua is a Chinese boy.

( )2. Jim is Li Hua's brother.

( )3. Li Hua and his sisters are in the same school.

( )4. Li Hua never goes to the English corner.

( )5. Li Hua likes yellow a lot.

判断题

发动机怠速运转时，离合器踏板已踩到底，但挂挡困难，变速时伴随有齿轮撞击声，说明离合器打滑。