压力容器开孔补强结构主要有（）、（）、（）三种。

阅读短文，选择正确答案。

     Danny fixed the little box on Eva's head. "It's a very clever machine," he said. "When a person tells a lie, this

needle here moves around. The numbers 0 to 20 show the size of the lie. Now tell me a few good lies." 

     Eva laughed, "What about? I never tell lies." 

     The needle moved from 0 to 4. "You have just told one," Danny said. "A group 4 lie, small and interesting.

Tell me a big, exciting lie." 

     "You have got an ugly face, Danny Dyson." 

     The needle fell back to zero, "No lie," Danny said. "So my mother was right then. She always said I was an

ugly child. But this is not a joke, Eva. The police use machine like this. Suppose you say you have killed

somebody. That's a big lie. It would send the needle round to 20. Think of a fat lie, like that." 

     "I hate you, Danny Dyson!" Eva cried, "Oh, how I hate you! Is that a lie big enough?" 

     Danny was fixing his eyes on the needle. "Funny," he said, "It has never been wrong before. Eva, have you?"

He fixed his eyes on her then. He didn't understand the look on her face.

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

A. Danny was a beautiful girl.

B. Eva had never lied.

C. Eva told lies sometimes.

D. Eva believed Danny was ugly.

2. What can we learn from the passage? [ ]

A. Eva was a beautiful girl.

B. Danny and Eva were friends

C. The machine went wrong

D. Eva hated Danny

3. When the needle stayed at 20 _____. [ ]

A. Eva looked very sad

B. Danny thought the machine went wrong

C. Danny knew Eva hated him

D. Eva hated Danny

4. The writer is trying to tell us ______. [ ]

A. an interesting story..

B. not to tell lies.

C. about a wonderful machine.

D. Eva was honest.

假设某一研究问题已有大量资料、资料收集相对容易、需要探讨变量关系，那么这项研究适合运用（）的方法。

A.定量研究

B.定性研究

C.反实证主义

D.社会唯名论

一根铁丝围成的长方体框架长8米，宽6米，高4米，这根铁丝长______米．如果在这个长方体外围糊一层纸，最少需要______米²纸．这个长方体的体积是______米³．如果用这根铁丝围成正方体，这个正方体的表面积和体积分别是______米²和______米³．

根据有公司税时的MM理论，以下情况下，公司价值最大的是( )。

A．负债为零

B．负债率为50%

C．负债率为100%

D．负债的实际边际成本等于权益的实际边际成本

安装工程投标报价的主要依据一般不包括（）。

A.设计图纸

B.施工规范

C.合同条件

D.施工协议书