从动件上升过程时,凸轮所转动的角度就是推程角。

题型:判断题

问题:

从动件上升过程时,凸轮所转动的角度就是推程角。

考点:机械工程师机械基础知识综合练习机械基础知识综合练习题库
题型:判断题

下列关于流动资金估算的表述中,正确的有( )。

A.流动资金估算应在营业收人和经营成本估算之后进行

B.流动资金估算可按行业或前期研究的不同阶段选用扩大指标估算法估算或分项详细估算法估算

C.当投入物和产出物使用不含增值税价格时,估算中应注意将销项税额和进项税额分别包含在相应的收入成本支出中

D.为简化计算,项目评价中流动资金可从建设期的最后1年开始安排

E.随着运营负荷的增长,流动资金也随之增加。各年流动资金需要量按100%运营负荷下的流动资金乘以投产期运营负荷估算

题型:判断题

下列叙述正确的是( )。

A.钢材的屈强比越小,工作安全性越大

B.钢材的工艺性能包括冷弯性和可焊性

C.木材以含水率为25%时的强度作为标准

D.生石灰的块末比越小,质量越好

E.胶合板的特点之一是消除了木材的各向异性

题型:判断题

—I've lost all the pictures that we took yesterday!

—_______  [ ]

A. You are kidding!  

B. What’s wrong?  

C. What do you mean?  

D. What are you doing?

题型:判断题

下述哪个部位的温度最接近中心温度()

A.腋窝

B.直肠

C.鼻咽部

D.皮肤

E.耳鼓膜

题型:判断题

I decided to have dinner in the hotel, for I arrived late one night on a business trip. As I was finishing my meal, an elderly couple came in to dine. They were holding hands and had lovely smiles on their faces. They sat three tables from me. I was amazed at the love they showed for each other. It seemed to strike home all the more, because it was shortly after ending a 20-year marriage and I still had pain in my heart.

My waiter was also their waiter. As I paid my bill, I inquired as to what their bill was. He informed me, and I gave him $40 to pay their bill.  He asked if I knew them and I told him "No, I just wanted to repay them for the love that they were showing to each other," and then I departed.

The next day I entered the restaurant to dine before my departure. After I had been seated, the waiter who served me the night before told me that the strangest thing happened after I left the restaurant. 

When the elderly couple went to pay for their meal, they were informed that it had been paid. When they inquired who had done this, the hostess told them they had no idea who I was, just retelling what I said.

The couple were amazed. They looked around, asked for the bill of two young couples who were seated together, paid their bill and departed, saying "Love begets(产生) Love" to the amazement of the hostess and waiter.

I smiled and said "That's nice," and proceeded to order my meal.

About 45 minutes later, I finished my meal and was about to head out, but my waiter was nowhere to be found. I waited and waited and finally walked over to the hostess stand and explained that I needed to pay for my meal and hurry to the airport. She smiled and explained that I would not have to pay for my meal, because both the waiter and she felt compelled to pay my bill due to the joy that was brought to the faces of the elderly couple and the amazement of the young couples.

When I told her that they didn't have to do that, she said with a smile "Love begets Love."

小题1:The writer’s purpose of writing the passage is to            

A.suggest love never dies

B.share an interesting experience

C.encourage us to help people in need

D.prove a show of love really makes a difference小题2:Why did the elderly couple pay the bill of the two young couples? 

A.Because they were always ready to help poor people.

B.Because they were happy to pass the love they gained.

C.Because they invited the young people to the meal.

D.Because they didn’t want to take the advantage of the writer’s generosity.小题3:What can be inferred from the story?

A.The love between the elderly couple deeply touched the writer who was single.

B.The young couples paid the bill of other customers in the restaurant.

C.The waiter left on purpose and made the writer stay alone to test him.

D.The writer did all this to prove his belief in love.小题4:Which of the following proverbs can best explain the theme of the story?

A.A good beginning makes a good ending.

B.Where there is love, there is life.

C.Love me, love my dog.

D.As a man sows, so shall he reap (收获).

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