问题 单项选择题

甲机电工程公司于2008年3月3日承建A化工厂的机械设备安装工程。首要工作是安装机械传动系统,设备包括:齿轮传动、带传动、轴、键和离合器等,应业主的要求,还需安装一个变速箱。工程于2008年3月11日完工,然后对系统进行调试,发现变速箱的传动系统错安成带传动,过载时带与带轮之间出现打滑,不能保证固定不变的传动比,其余设备均正常运行。

齿轮传动的特点不包括( )。

A.传动比准确、稳定

B.工作可靠性高,寿命长

C.适宜于远距离两轴之间的传动

D.要求较高的制造和安装精度,成本较高

答案

参考答案:C

阅读理解

阅读理解

There are some highlights in April in Shanghai.

Live Music - Late Night Jazz

Enjoy real American jazz from Herbie Davis, the famous trumpet player. He's coming with his

new 7-piece band, Herbie's Heroes. Herbie is known to play well into the early hours, so don't expect to

get much sleep. This is Herbie's third visit to Shanghai. The first two were sold out, so get your tickets

quickly.

Place:  The Jazz Club          Dates:15 - 23 April           Price:¥80

Time: 10:00 p.m. till late!        TEL:6466 - 8736  

Scottish dancing

Take your partners and get ready to dance till you drop. Scottish dancing is fun and easy to learn.

Instructors will demonstrate the dances. The live band, Gordon Stroppie and the Weefrees, are also

excellent.

Place:  Jack Stein's     Dates: every Monday   Price:¥60 including one drink

Time: 7:00 - 00:00 p.m.   TEL:6402 - 1877

Exhibitions - Shanghai Museum

There are 120,000 pieces on show here. You can see the whole of Chinese history under one roof. It's

always interesting to visit, but doubly so at the moment with the Egyptian Tombs exhibition. There are

lots of mummies and more gold than you've ever seen before. Let us know if you see a mummy move!

Place: Shanghai Museum           Price:¥30(¥15 for students)

TEL:6888 - 6888                 Dates: daily

Time: Monday - Friday 9:00 a. m. - 5:00 p. m., Weekends 9:00 a. m. - 9:00p.m.

Dining - Sushi chef in town

Sushi is getting really big in Shanghai. In Japan, it's become an art form. The most famous Sushi 'artist' is

Yuki Kamura. She's also one of the few female chefs in Japan. She'll be at Sushi Scene all of this month.

Place: Sushi Scene in the Shanghai Hotel  Dates: all month          

Price: ¥200                        Time: lunchtime TEL: 6690 - 3211  

For a full listing of events, see our website.

1. Suppose you are going to attend an activity at 11:00 p.m. on Saturday, which one can you choose?

A. Live Music - Late Night Jazz

B. Scottish dancing

C. Exhibitions - Shanghai Museum

D. Dinning - Sushi chef in town

2. From the text we may learn that Sushi is          .

A. a cook

B. an instructor

C.  a kind of food

D. an artist

3. Which is not true about the ads?

A. Yuki Kamura will stay in Shanghai in April for a whole month.

B. A family of parents with 15 - year - old twins should pay 75 yuan for the Shanghai museum admission.

C. You will probably be taught to dance if you go to Jack Stein's.

D. American jazz from Herbie Davis is popular in Shanghai.

4. Where are the ads available to people?

A. Newspaper

B. Magazine  

C. TV

D. Interne

综合