变频制冷压缩机高转速运转时()。 A.不用考虑任何问题 B.要考虑泄漏量增大的问题

题型:单项选择题

问题:

变频制冷压缩机高转速运转时()。

A.不用考虑任何问题

B.要考虑泄漏量增大的问题

C.要考虑润滑油量减小的问题

D.要考虑气阀流动阻力增大的问题

考点:制冷设备维修工高级制冷设备维修工高级制冷设备维修工题库
题型:单项选择题

选出下列各项中加点的字解释有误的一项:( )

A.夫晋,何厌之有(厌,厌烦)

B.又欲肆其西封(封:使……成为疆界)

C.微夫人之力不及此。(夫人,那人)

D.亦去之(去,离开)

题型:单项选择题

The quality of water supply in southern Beijing has been improving in recent years, an official said.

In addition to improvements in the network of pipes, the government has been upgrading three recycled water plants in the south of the capital, said Zhao Lei, spokesman for the Beijing Municipal Commission of Development and Reform.

"The transformation of the three plants has increased the recycled water processing capacity by 160,000 cubic meters per day," he said.

In addition, the city is also speeding up the construction of sewage treatment plants to further recycle the sewage, Zhao said.

Zhang Xiang, a researcher from Nature University, an environmental protection NGO in Beijing, said recycled water use should be promoted, especially in water-scarce cities such as Beijing.

Setting up more recycled water plants in the capital will not only promote efficient water use, but also reduce costs because recycling water is much cheaper than transferring it over long distances, he said.

According to the Beijing Water Authority, the capital will set up 46 more recycled water plants citywide in the next three years while upgrading 20 sewage treatment plants.

The treatment rate of domestic sewage in downtown Beijing will reach 98 percent by the end of 2015, it said.

The capital's recycled water is mainly used for industry, landscaping and cleaning, Zhang said.

Many new communities in southern Beijing are equipped with a network to recycle water.

In the past, people were not enthusiastic about using recycled water. However, as the government has boosted the quality of recycled water and set up more recycled water plants, more residents are gradually accepting it.

Residents in southern Beijing will also enjoy more clean energy, as the government will replace traditional coal-burning stoves with electric radiators as part of a three-year plan to develop southern Beijing from 2013 to 2015.

Since 2010, Beijing has taken measures to develop its southern areas. Earlier efforts have seen the region, which used to rely heavily on low-end industries such as cement factories and small coal mines, being turned into a bustling commercial center and home to many educational institutions.

小题1:This passage may appear in ________ section.

A.business

B.life

C.politics

D.forum小题2:which statement is true according to the passage

A.Recycled water will be mainly used for drink.

B.As usual, recycled water is accepted by people.

C.Traditionally people in southern Beijing use coal-burning stove for cooking.

D.The water Transferred over long distance is cheaper than recycled water.小题3: How many recycled water plants will the capital city have in about 3 years?

A.46.

B.20

C.3

D. 49小题4: What does the last paragraph mainly tell us?

A.Southern area in Beijing has taken on a new look.

B.The southern area is hone to many educational institutions

C.Southern area in Beijing is more beautiful now.

D.Southern area in Beijing is a busy place now .小题5: Which is the best title for the passage?

A.Beijing government has taken measures to improve its people`s life.

B.Recycled water flows to southern Beijing.

C.More recycled water plants will be built.

D.The southern Beijing residents will enjoy clean water

题型:单项选择题

下列各项中,属于母病及子的是()。

A.肺病及肾

B.肝病及肾

C.肺病及心

D.心病及肝

E.脾病及肾

题型:单项选择题

胡适对中国现代文学的贡献主要表现在哪些方面?

题型:单项选择题

有关B-细胞和T-细胞的不同点错误的是:()

A、T-细胞比B-细胞的寿命长很多

B、B-细胞是通过体液消灭异己

C、T-细胞成熟场所是骨髓

D、T-细胞是通过细胞发挥免疫功能

更多题库