钢凝混凝土排水管分为()水管。A.自应力 B.拉应力 C.预应力 D.压应力

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问题:

钢凝混凝土排水管分为()水管。

A.自应力

B.拉应力

C.预应力

D.压应力

考点:循环水操作工循环水操作工中级循环水操作工中级题库
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《麻醉药品和精神药品管理条例》将精神药品分为

A.处方类和非处方类
B.第一类和第二类
C.非零售类和零售类
D.甲类和乙类
E.外用类和内服类

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2~3层扁平细胞,与釉质形成有关()

A.外釉上皮层

B.内釉上皮层

C.星网状层

D.中间层

E.釉结

题型:多项选择题

阅读理解。

     For the 17 years my life was very happy. Then the first sad thing happened. My mother became

very ill, and soon she knew that she was dying. Just before she died, she asked Elizabeth and me to

go to her room. She held our hands and said, "Victor and Elizabeth, my children, I'm very happy

because you love each other, and because one day you'll get married. Everyone in the family loves

you, Elizabeth. Will you take

my place in the family, my dear? I can die happy if you look after them when I have gone."

My mother died and we were very sad, because we loved her dearly. Elizabeth was brave and

helped us; her sweet smile gave us some happiness in the unhappy days after my mother's death.

The time came for me to go to university. I didn't want to leave my sad family, but we all knew that

I should go. It as hard to leave, too, because the parents of my good friend Henry would not let

him go to university with me. So I had gone alone.

     On my first day at university I met my teacher, Professor Waldman, who was one of the greatest

scientists in the world. He gave a wonderful talk to all the students who were starting at the university.

He ended his talk by saying, "Some of you will become the greatest scientists of tomorrow. You must

study hard and discover everything that you can. This is why God made you intelligent-to help other

people."

     After the professor's talk, I thought very carefully. I remembered the storm when I was 15; I

remembered how the lightning had destroyed the tree. From then on, I wanted to use electricity to

help people, and I wanted to discover the secrets of life. I decided to work on these two things.

     I started to work the next day. I worked very hard and soon Professor Waldman and I realized

that I could learn to be a very good scientist.

     The professor helped me very much, and other important scientists who were his friends helped

me, too. I was interested in my work and I did not take one day's holiday during the next two years,

I did not go home, and my letters to my family were very short.

     After two years, I had discovered many things and I built a scientific machine that was the best in

the university. My machine would help me answer the most important question of all. How does life

begin? Is it possible to put life into dead things? To answer these questions about life I had to learn

first about death. I had to watch bodies from the moment when they died and the warm life left them.

In the hospital and in the university, I watched the dying and the dead. Day after day, month after month,

I followed death, so it was a dark and terrible time.

     I built a tall mast about 150 metres high, which is higher than the tallest building in the city, to catch

lightning and send the electricity down to my machine in the lab. I believed I could use that electricity to

give life to things that were dead.

     Then one day, the answer came to me. Suddenly I was sure that I knew the secret of life.

1. Which of the following is TRUE according to the passage?

A. Elizabeth married shortly after Victor's mother died.

B. Elizabeth was a brave girl who loved Victor and gave him much help.

C. Victor's mother was very angry when she knew he loved Elizabeth.

D. Victor did not want to leave his family because his mother died not long before.

2. Victor did all the following during his research in the university EXCEPT that       .

A. he discovered many things and built a scientific machine

B. he learnt much about death both in the hospitals and in the university

C. he worked hard and took only one day's holiday during the next two years

D. he built a tall mast to catch lightning and send the electricity down to the lab

3. According to the author, the secret of life is to        .

A. give life to things that were dead

B. use electricity to help others

C. build the best machine to learn about death

D. become the greatest scientist of tomorrow

4. Which is the correct order about the life of Victor?

① Victor's mother passed away.

② Victor got help from the professor and other scientists.

③ Victor went to university and attended the professor's talk.

④ Victor found the answer to giving life to things that were dead.

⑤ Victor experienced a storm, seeing the lightning destroying the tree.

A. ①②③④⑤     B. ⑤①②④③     C. ①③②⑤④    D. ⑤①③②④

题型:多项选择题

任何一种态度都有其对应的特定对象,这是指( )。

A.态度的社会性
B.态度的针对性
C.态度的协调性
D.态度的两极性

题型:多项选择题

在艾里斯的ABC理论的三个因素中,最关键的是人们的信念、态度和解释。()

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