用兆欧表测量较大电容的电气设备的绝缘电阻时,读数和记录完毕后,应当()。A、现断开L

题型:多项选择题

问题:

用兆欧表测量较大电容的电气设备的绝缘电阻时,读数和记录完毕后,应当()。

A、现断开L端接线

B、先断开G端接线

C、再停止摇动

D、最后进行放电

考点:电工特种作业操作证电工复审电工复审题库
题型:多项选择题

常用的低合金刃具钢是()

A.T8

B.9SiCr

C.W18Cr4V

D.GCr15

题型:多项选择题

某公.司2002年年初负债对所有者权益的比率为1。若该公司计划2002年年末所有者权益为5000万元,并使债权人投入的资金受到所有者权益保障的程度提高5个百分点,则该公司2002年年末资产负债率为( )。

A.48.72%

B.49.78%

C.50.00%

D.51.22%

题型:多项选择题

腭垂腭咽成形术的切除范围除外()

A.1/2腭舌弓及腭咽弓粘膜

B.软腭边缘粘膜

C.双侧扁桃体

D.部分腭垂

E.部分舌根

题型:多项选择题

阅读理解

     Without proper planning, tourism can cause problems. For example, too many tourists can crowd

public places that are also enjoyed by the inhabitants of a country. If tourists create too much traffic,

the inhabitants become annoyed and unhappy. They begin to dislike tourists and to treat them impolitely.

They forget how much tourism can help the country's economy. It is important to think about the people

of a destination country and how tourism affects them. Tourism should help a country, keep the customs

and beauty that attract tourists. Tourism should also advance the wealth and happiness of local inhabitants.

     Too much tourism can be a problem. If tourism grows too quickly, people must leave other jobs to

work in the tourism industry. This means that other parts of the country's economy can suffer.

     On the other hand, if there is not enough tourism, people can lose jobs. Businesses can also lose

money. It costs a great deal of money to build large hotels, airports, air terminals, first- class roads, and

other support facilities(配套设施)needed by tourist attractions. For example, a major international class

tourism hotel can cost as much as 50 thousand dollars per room to build. If this room is not used most of

the time, the owners of the hotel lose money.

     Building a hotel is just a beginning. There must be many support facilities as well, including roads to

get to the hotel, electricity, sewers to handle waste, and water. All of these support facilities cost money.

If they are not used because there are not enough tourists, jobs and money are lost.

1. Which of the following do you think has been discussed in the part before this selection?

A. It is extremely important to develop tourism.

B. Building roads and hotels is essential.

C. Support facilities are highly necessary.   

D. Planning is of great importance to tourism.

2. Too much tourism can cause all these problems EXCEPT ____________ .

A. a bad effect on other industries      

B. a change of tourists' customs

C. over-crowdedness of places of interest

D. pressure on traffic

3. It can be inferred from the text that _____________ .

A. the author doesn't like tourism developing so fast

B. local people will benefit from tourist attraction

C. other parts of a country's economy won't benefit from tourism much

D. we can't build too many support facilities

4. The author thinks it is good for local people to know that tourism will ____________ .

A. waste a lot of money                  

B. weaken their economy

C. help establish their customs            

D. help improve their life

题型:多项选择题

( )is a major port of Chin

A.A. HuoerguosiB. HanioC. IwakuniD. Kiel

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