表面粗糙度值越小,则零件的()。A.耐磨性好。 B.配合精度高。 C.抗疲劳强度差.

题型:多项选择题

问题:

表面粗糙度值越小,则零件的()。

A.耐磨性好。

B.配合精度高。

C.抗疲劳强度差.

D.传动灵敏性差。

E.加工容易。

考点:测绘科学技术互换性与技术测量互换性与技术测量题库
题型:多项选择题

使用筷子时有哪些禁忌?

题型:多项选择题

三、阅读理解(共20 小题;每小题 2分,满分40分)

After giving a talk at a high school, I was asked to pay a visit to a special student. An illness had kept the boy home, but he had expressed an interest in meeting me. I was told it would mean a great deal to him, so I agreed.

During the nine-mile drive to his home, I found out something about Matthew. He had muscular dystrophy (肌肉萎缩症). When he was born, the doctor told his parents that he would not live to five, and then they were told he would not make it to ten. Now he was thirteen. He wanted to meet me because I was a gold-medal power lifter, and I knew about overcoming obstacles(克服困难) and going for(努力实现) my dreams.

I spent over an hour talking to Matthew. Never once did he complain(抱怨)or ask, “Why me?” He spoke about winning and succeeding and going for his dreams. Obviously, he knew what he was talking about. He didn’t mention(提到) that his classmates had made fun of him because he was different. He just talked about his hopes for the future, and how one day he wanted to lift weights with me. When we had finished talking, I went to my briefcase(公事包) and pulled out the first gold medal I had won and put it around his neck. I told him he was more of a winner and knew more about success and overcoming obstacles than I ever would. He looked at it for a moment, then took it off and handed it back to me. He said, “You are a champion(冠军). You earned that medal. Someday when I get to the Olympics and win my own medal, I will show it to you.”

Last summer I received a letter from Matthew’s parents telling me that Matthew had passed away(去世). They wanted me to have a letter he had written to me a few days before:

Dear Dick,

My mum said I should send you a thank-you letter for the picture you sent me. I also want to let you know that the doctors tell me that I don’t have long to live any more, but I still smile as much as I can.

I told you someday that I would go to the Olympics and win a gold medal, but I know now I will never get to do that. However, I know I’m a champion, and God knows that too. When I get to Heaven(天堂), God will give me my medal and when you get there, I will show it to you. Thank you for loving me.

Your friend,

Matthew

36. The boy looked forward to meeting the author because _________.

A. he was also good at weight lifting

B. he wanted to get to the Olympics and win a medal

C. the author was handsome

D. he admired the author very much

37. The underlined sentence(划线的句子) in the third paragraph probably means that _______.

A. the boy never complained about how unlucky he was to have this disease

B. the boy never complained about not being able to go to school

C. the boy never complained why the author had never come to see him before

D. the boy never complained about not getting a medal

38. From the passage we learn that _________.

A. Matthew was an athlete

B. Matthew was an optimistic and determined boy

C. The author used to have the same disease as Matthew had

D. Matthew became a champion before he died

39. Matthew didn’t accept the author’s medal because _________.

A. he thought it was too expensive

B. he was sure that he could win one in the future

C. he thought it was of no use to him as he would die soon

D. he would not be pitied by others

40. What would be the best title for this passage?

A. A sick boy.                  B. A special friend.

C. A real champion.             D. A famous athlete.

题型:多项选择题

下列哪项不属相反的脉

A.滑脉与涩脉

B.虚脉与实脉

C.迟脉与数脉

D.弦脉与滑脉

题型:多项选择题

为了应付通货膨胀的形势,企业一般采取如下一些价格决策()。

A.采取报价限时制度

B.在合同中规定价格定期调整条款

C.提高商品质量、特色和增加销售服务

D.降低批发起点

题型:多项选择题

络纱工艺如何确定?其质量如何控制?

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