同钢材、混凝土等建筑材料相比，土的抗剪强度有何特点？同一种土_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题问答题简答题

同钢材、混凝土等建筑材料相比，土的抗剪强度有何特点？同一种土其强度值是否为一个定值？为什么？

答案

参考答案：

（1）土的抗剪强度不是常数；

（2）同一种土的强度值不是一个定值；

（3）土的抗剪强度与剪切滑动面上的法向应力相关，随着的增大而提高。

完形填空

When I was a little girl, my father loved to play the game of “catch the ball” with me. I wasn’t good at it 21 he didn’t mind at all. He was always telling me to 22 my eyes on the ball; otherwise I would not be able to 23 it when he threw it to me.
As I got older, we didn’t play the game as 24 as before. If I had a   25 , I would go to my father and   26   his advice. He would try to make a joke and say, “Keep your eyes on the ball.” We would both laugh   27   that advice was not usually able to   28   the problem, but he would just try to make me   29 .
My father became   30   in 1995 when I was 23. There were not any more conversations, as he was   31   from a terrible disease. He couldn’t   32 ; he could only move his   33   without making a sound, which was sometimes   34   to understand. I seemed to be   35   good at reading his lips after a while, even better than the nurses that were   36   him.
During one of our last   37   I was telling him about a difficulty I was   38 . Once again, I could read his lips. “Keep your eyes on the ball,” he said. We both smiled. That was the last time I saw my father   39   he passed away.
Sometimes now, all those years later when I get into a   40   situation, I just tell myself, “Keep your eyes on the ball.”

A．interesting

A．waiting for

B．thinking about

D．worrying about

A．impressions

B．experiences

D．conversations

A．looking through

B．going through

D．getting along

C．frightening

单项选择题

某单位的人事档案管理程序属于( )。

A．工具软件
B．应用软件
C．系统软件
D．文字处理软件