一对标准直齿圆柱齿轮传动正确啮合的条件是()。

题型:填空题

问题:

一对标准直齿圆柱齿轮传动正确啮合的条件是()。

考点:电铲司机考试露天矿电铲司机中级工露天矿电铲司机中级工题库
题型:填空题

下列四个选项中,哪项是图中图形演变的结果()

 

A.

B.

C.

D.

题型:填空题

阅读理解。

     When Wayne Mix was a child in the 1930s, his family sent him to a school for the deaf and blind. He

learned American Sign Language. With American Sign Language, deaf people use their hands to communicate.

They can spell words with their fingers, or they can use signs for whole words. Wayne communicated with

teachers and friends in sign language. He graduated at the age of 20. In those days, people who were deaf did

not get jobs and were not part of the community (社区), so Wayne went back to the family farm. His family

did not know sign language, so Wayne communicated a little by making simple motions (手势) with his hands.

He was never able to tell them his thoughts and feelings.

     Wayne's father died in 1971. There was no place for Wayne to live, so they sent him to Mountain

Meadows nursing home. He was only 51 and much younger and healthier than the other people in the nursing

home, but he was treated like the 80 and 90-year-old people because he did not hear or speak. No one knew

that Wayne was able to use sign language.

     Twenty-nine years passed slowly and silently for Wayne. Then one day he saw a visitor using sign

language with her deaf mother during a visit to the nursing home. He walked up to them and signed, "I'm

Wayne Mix."

     Suddenly everything changed for Wayne. He found many people who knew sign language. These-people

communicated through sign language, e-mail, television with subtitles and a special telephone that prints (打印)

the words that are spoken. It was a whole new world for Wayne. Now he could tell people his feelings, his

needs, and his thoughts.

     The people in Wayne's town were sad about the thousands of days in Wayne's life when no one knew

that he could communicate. They wanted to help Wayne to do some of the things he always wanted to do.

The workers at the nursing home found out that as a young man he loved to swim, and' he loved to see

pictures of dolphins swimming. When he started signing again, they asked him where he wanted to go.

"Water." Wayne signed.

     Mountain Meadows workers had an idea. "Let's send Wayne to Sea World in San Diego. "They told other

people in town about their idea. Many people in Wayne' s . town and in other states gave money to help

Wayne make the trip. The people at Sea World were very kind to Wayne. They let him swim with the dolphins

and help them feed all the sea animals. Newspapers wrote about Wayne, so many people gave money to buy

him a special TV and a telephone set. These were things Wayne never knew about before.

1. How did Wayne Mix communicate with his teachers in the school?

A. In American Sign Language.

B. By drawing pictures.

C. By spelling words on their hands.

D. By making simple 'motions.

2. Why did Wayne Mix go to live in the nursing home?

A. Because his family moved to another town.

B. Because nobody in his family knew the sign language.

C. Because his family was not able to provide him a room to live in.

D. Because he like to talk with the old people living in the nursing home.

3. How did Wayne's life change after he met a visitor using sign language in the nursing home?

A. He told the visitor who he was.

B. His life stayed the same as before.

C. He could send e-mails and make telephones to his new friends.

D. He could "talk" with people, telling them his needs and feelings.

4. Why did people feel sad after Wayne began to communicate with others again?

A. Because he was sent to the nursing home at a young age.

B. Because he failed to communicate with his family for such a long time.

C. Because he was not able to communicate with others while he could.

D. Because they were not sure how to look after Wayne later on.

5. Which of the following is NOT true according to the passage?

A. Wayne tried to find a job after he graduated from the school but failed.

B. Many people gave money to buy Wayne a special TV and a telephone set.

C. The nursing home workers sent Wayne to a Sea World to swim.

D. Wayne Mix lived in silence all his life though many people helped him.

题型:填空题

肾虚产后排尿异常的主症不包括

A.产后小便不通

B.小腹胀满而痛

C.面色晦暗

D.腰膝酸软

E.脉弦数

题型:填空题

碗扣式钢管脚手架的挑梁分为宽挑梁、()。

A.上挑梁

B.悬挑梁

C.窄挑梁

D.下挑梁

题型:填空题

患者男性,38岁,查体发现血压150/ 90mmHg,B超示双肾多发性囊肿,肾脏失去正常结构,父亲58岁死于尿毒症,哥哥 B超肝脏及双肾多发性囊肿,有脑动脉瘤出血史。最可能的诊断是

A.囊肿性发育不良
B.获得性肾囊肿
C.肾髓质性病
D.多囊肾
E.单纯性肾囊肿

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