试题与答案

已知悬臂支护结构计算简图(未按比例绘制)如题26图所示,砂土土性参数:γ=18kN/

题型:单项选择题

题目:

已知悬臂支护结构计算简图(未按比例绘制)如题26图所示,砂土土性参数:γ=18kN/m3,c=0,ψ=30°,未见地下水,图中Ea1、Ea2和Ep,分别表示净主动土压力和净被动土压力,ba1、ba2和bp。分别表示上述土压力作用点的高度。

支护结构的抗倾覆稳定性可按下式验算:,验算结果符合()。

A.

B.

C.

D.所给条件不够,无法进行计算

答案:

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题型:阅读理解

Joe Brown had a shop. He sold meat in his shop. One Thursday a woman came into his shop at five to one. “I’m sorry I’m late,” she said. “I need some more meat for my dinner tonight.” Joe had only one piece of meat in his shop. He took it out of the fridge and said, “This is $6.50.””That piece is too small,” the woman said, “haven’t you got anything bigger?” Joe went into the room behind his shop, put the piece of meat into the fridge, took it out again and closed the door with lots of noise. Then he brought the piece of meat to the woman and said, “This piece of meat is bigger and more expensive. It’s $8.75.””Good ,” the woman said with a smile , “give me both of them, please.”

小题1:Joe Brown was ______.

A.a waiter(侍者)

B.a runner

C.an singer

D.a shopkeeper小题2:When did the woman come to Joe’s shop?

A.Early in the morning.

B.Early in the afternoon.

C.Late in the evening.

D.At about one o’clock at night.小题3:Why didn’t the woman want that piece of meat?

A.Because she had no money.

B.Because it was bad.

C.Because it wasn’t big enough.

D.Because it was too big.小题4:How many pieces of meat were kept in the fridge?

A.Only one piece of meat.

B.Two pieces of meat.

C.Several pieces of meat.

D.Many pieces of meat.小题5:Could Joe give the woman both pieces of meat?

A.Of course not.

B.Certainly.

C.He would try his best.

D.Yes, he could.

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