问题 单项选择题

慢性阻塞性肺病支气管炎型(B型)患者不同于慢性阻塞性肺病肺气肿型(A型),因为前者有()

A.缺乏粘液样痰液

B.动脉二氧化碳分压降低或正常

C.肺余气量增加

D.吸气时气道阻力增加

E.最大呼气流量减少

答案

参考答案:D

阅读理解

阅读理解。

      In 1901, H.G. Wells, an English writer, wrote a book describing a trip to the moon. When the explorers

(探险者) landed on the moon, they discovered that the moon was full of underground cities. They expressed

their surprise to the "moon people" they met. In turn, the "moon people" expressed their surprise. "Why," they

asked, "are you traveling to outer space when you don't even use your inner space?"

      H.G. Wells could only imagine travel to the moon. In 1969, human beings really did land on the moon.

People today know that there are no underground cities on the moon. However, the question that the "moon

people" asked is still an interesting one. A growing number of scientists are seriously thinking about it.

      Underground systems are already in place. Many cities have underground car parks. In some cities, such

as Tokyo, Seoul and Montreal, there are large underground shopping areas. The "Chunnel"-a tunnel (隧道)

connecting England and France, is now complete.

      But what about underground cities? Japan's Taisei Corporation is designed a network of underground

systems, called "Alice Cities." The designers imagine using surface space for public parks and using

underground space for flats, offices, shopping, and so on. A solar dome (太阳能穹顶) would cover the

whole city.

      Supporters of underground development say that building down rather than building up is a good way to

use the earth's space. The surface, they say, can be used for farms, parks, gardens, and wilderness. H.G.

Wells' "moon people" would agree. Would you?

1. The explorers in H. G. Wells' story were surprised to find that the "moon people" ____. [ ]

A. knew so much about the earth

B. understand their language

C. lived in so many underground cities

D. were ahead of them in space technology

2. What does the underlined word "it" (paragraph 2) refer to? [ ]

A. Discovering the moon's inner space.

B. Using the earth's inner space.

C. meeting the "moon people" again.

D. Traveling to outer space.

3. What sort of underground systems are already here with us? [ ]

A. Offices, shopping areas, power stations.

B. Tunnels, car parks, shopping areas.

C. Gardens, car parks, power stations.

D. Tunnels, gardens, offices.

4. What would be the best title for the text? [ ]

A. Alice Cities-cities of the future

B. Space travel with H.G. Wells

C. Enjoy living underground

D. Building down, not up

单项选择题