材料的弯曲变形有()种形式。A、自由弯曲 B、接触弯曲 C、矫正弯曲 D、连接弯曲

题型:多项选择题

问题:

材料的弯曲变形有()种形式。

A、自由弯曲

B、接触弯曲

C、矫正弯曲

D、连接弯曲

考点:冷作工考试中级冷作工中级冷作工题库
题型:多项选择题

盘钢在使用前,必须经过放盘调直工序。( )

题型:多项选择题

Alice is a young woman. She likes to exercise for her health. She walks five kilometers before breakfast every morning, and goes swimming twice a week at the swimming pool. She doesn’t smoke and never drinks wine(酒). She doesn’t eat chocolate, and she doesn’t eat sweet and fatty foods.

One day Alice was on her daily walk when she saw a man sitting in a chair. He looked very old and his hair was white. He looked thin and weak, and his hands were shaking(发抖), but he looked very happy.

He smiled at her and said, “ Good morning! Lovely day, isn’t it?”

He had a big smile on his face, and his eyes showed his happiness. But Alice saw that he had no teeth.

“Good morning!” said Alice. “Yes, it’s a lovely day.”

Alice thought he was old and clever. She thought he must be more than 90 years old. She wanted to ask him about the secret of a happy old age.

“Excuse me. But what is your secret for being so happy at your age? I hope I can look as happy as you do when I am your age.”

The man in the chair said, “My secret for happiness? I smoke every day, and drink three bottles of wine every day. I eat hamburgers, I eat chocolate and I never eat vegetables. I never walk anywhere and I never play sports. I sit and watch TV all day.”

Alice couldn’t understand. She wanted to know how the man got to be so old when he did everything wrong. She thought he should be sick and unhappy. Perhaps she was wrong. Maybe, she thought, people could live a long happy life without eating well and doing lots of sports. 

“How old are you?’ she asked.

“It’s my birthday today.” Said the man, “I am forty-seven.”

11. What does Alice like?

A. Smoking.        B. Drinking wines.        C. Eating unhealthy food.     D. Doing sports.

12. Which is WRONG about the old man?

A. He didn’t have any teeth.                     B. He was more than 90 years old.

C. He looked happy although he looked thin and weak.     D. He looked very old.

13. How often did the old man do sports?

A. Never.         B. Often.            C. Sometimes.            D. Every day.

14. How did Alice feel when he heard the old man’s secret for happiness?

A. Happy.        B. Interested.         C. Excited.              D. Surprised.

15. After the old man told Alice about his age, Alice knew         .

A. the man was in good health for his age        

B. the man had a healthier lifestyle than her

C. a good lifestyle was important for one’s health   

D. people could live a long life without a good lifestyle

题型:多项选择题

______的倒数是它本身.|x-2|=4,则x是______或______.

题型:多项选择题

某连锁店客房100间,9月份的出租率80%,能源费用50000元,该酒店当月能源费用的POR是()元(四舍五入保留至元)。

A.17元

B.19元

C.21元

D.23元

题型:多项选择题

You are looking at the following data.Project A has a CPI of 0.8 and SPI of 1.2 and EV of 450.Project B has CPI of 1.2 and SPI of 0.8 and EV of 650.Which of the following statement is true ?()

A.Project B is performing better because it has a higher earned valu

B.Project A has schedule slippage and project B is ahead of schedul

C.Crashing project A is a good optio

D.Crashing project B is a good optio

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