某一非浸水、基底面为水平的重力式挡土墙,作用于基底上的总垂直力N为192kN,墙后主

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问题:

某一非浸水、基底面为水平的重力式挡土墙,作用于基底上的总垂直力N为192kN,墙后主动土压力总水平分力E为75kN,墙前土压力水平分力忽略不计,基底与地层间摩擦系数f为0.5,按《铁路路基支挡结构设计规范》(TB10025—2001,J127—2001)所规定的方法计算,挡土墙沿基底的抗滑动稳定系数Kc与()最接近。

A.1.12

B.1.20

C.1.28

D.2.56

考点:注册土木工程师岩土工程专业案例注册土木工程师岩土工程专业案例下午真题2002年
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阅读理解。
      Different from popular thoughts, colds are not caused by bad weather. Colds are caused by viruses
(病毒) in the body, and you are better out on the snowy day than you are in a warm room, with your
friends, who just may be passing the virus around. If you feel a chill (寒冷) when you are coming down
with a cold, you are already sick. A chill is an early sign of the cold.
      The virus can spread through air when a cold-sufferer (感冒患者) coughs or sneezes. Surprisingly,
this is not the most usual way of spreading, Many studies have now shown that most colds are "caught"
by hands. A cold-sufferer rubs her nose, so spreading the virus to her hand. Then a friend comes to visit
her. They shake their hands. The friend then gets something to eat by hand, and several days later she
catches a cold. Although some parents pick up their children's tissues (纸巾) and carefully throw them
away, they fail to wash their hands. They'll catch the colds, too.
      Cold viruses can also be spread by objects, for example, telephones, plates. The cold-sufferer as well
as other members of the house, by washing their hands often, will stop the viruses from spreading in a way.
1. Colds are caused by ______.
[ ]
A. bad weather
B. viruses
C. chill
D. your friends
2. The word "spread" means ______.
[ ]
A. 翻译
B. 传统
C. 传送
D. 传播
3. Which of the following sentences is true in the passage?
[ ]
A. An early sign of the cold is viruses in the body.
B. The virus can't spread through air.
C. Objects can spread cold viruses, too.
D. Few colds are "caught" by hands.
4. People catch colds easily because they ______.
[ ]
A. rub their noses
B. shake their hands
C. pick up their children's tissues
D. can't often wash their hands
5. The passage mainly tells us that ______.
[ ]
A. washing hands is a way to keep us from catching colds
B. colds are caused by bad weather
C. the cold-sufferer shakes hands with her friends
D. we should stay in a warm room on the snowy day
题型:单项选择题

具有自动变速器汽车,如上大坡,长坡应提前将自动档换入固定的()上,以保证上坡平顺。

A、D档

B、3档或者2档

C、4档或者3档

D、P档

题型:单项选择题

成卷卫生纸(非零售包装,宽度为48cm)

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通过抑制细胞免疫而发病的传染病是()。

A.乙型肝炎

B.艾滋病

C.麻疹

D.肺结核

E.流行性出血热

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检验喷射混凝土质量的主要指标有哪些?

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