岩体巾的各种结构面,由于成因不同,其形态、特征以及力学性质也不同。根据地质成因,结构

题型:单项选择题

问题:

岩体巾的各种结构面,由于成因不同,其形态、特征以及力学性质也不同。根据地质成因,结构面可分为原生结构面、构造结构面以及()结构面等三种类型。

A.软弱夹层 

B.劈理 

C.次生 

D.层面

考点:注册土木工程师岩土工程基础知识基础知识
题型:单项选择题

夏天在室内洒一些水会觉得凉快些,这是因为水______,并在这个过程中______(填“吸热”和“放热”).

题型:单项选择题

阅读理解。

     Because of my curiosity (好奇心), I had a really exciting weekend. I took a trip to Gloucester to see

some of the world's most beautiful animals-whales in the North Atlantic Ocean. After a long trip by train

and bus, we got on the ship called the "Privateer". On our way to see the whales on that beautiful sunny

day, I grew more and more excited.

     After a while we stopped, and everyone on the ship started to shout because we'd seen whales. It was

wonderful! 

     While we were watching the whales, a guide was giving us information about them. She told us we

were seeing only two kinds of whales-50-foot whales (singing whales) and 70-foot whales (the second

largest whales on the earth). She also said we could easily tell the different kinds of whales by their tales

(尾巴), since every whale has a different tail, just as people have different fingerprints (指纹).

     They all have names as well. On this trip, we saw "Salt" and "Pepper", two whales named by a scientist

and a fisherman. They swam together all the time. Sometimes whales came so close to the ship that we

thought we could touch them.

      I took twenty-seven photos, which was a really hard job because they moved so quickly, and stayed

on the surface of the ocean for such a short time. Having seen the whales was one of the chances few

people ever got. I was lucky enough to have that chance.

1. The passage is mainly about _____.[ ]

A. the different kinds of whales

B. the different kinds of animals in the ocean

C. a trip to study ocean animals

D. a trip to see whales

2. Which of the following transport did the author NOT use during the trip? [ ]

A. The train.

B. The plane.

C. The bus.

D. The ship.

3. We can learn from the third paragraph that _____. [ ]

A. there were only two kinds of whales

B. 70-foot whales are the largest in the world

C. whales all have different tails

D. whales have fingerprints as people do

4. What did the author do when she saw the whales? [ ]

A. She gave them the names "Salt" and "Pepper".

B. She swam with them.

C. She got close to touch them

D. She took photos of them.

题型:单项选择题

什么是劳动保护?

题型:单项选择题

()是防止起吊钢丝绳由于角度过大或挂钩不妥时,造成起吊钢丝绳脱钩的安全装置。

A.力矩限制器

B.超高限制器

C.吊钩保险

D.钢丝绳防脱槽装置

题型:单项选择题

献血教育材料应该由下列哪些部门发行:()

A.国家输血服务机构

B.红十字会

C.红星月会

D.卫生部健康教育部门

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