《中华人民共和国大气污染防治法》规定：国务院有关部门和地方各_爱下问搜题

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问题单项选择题

《中华人民共和国大气污染防治法》规定：国务院有关部门和地方各级人民政府应当采取措施，改进城市能源结构，推广( )的生产和使用。

A．清洁能源
B．可再生能源
C．电力能源
D．生物质能

答案

参考答案：A

完形填空

Street Markets(市场) around the World
There are many ways of shopping. You can shop by telephone, by post or through your home computer. But for many people, the most exciting way to shop is also the most traditional(传统的)—at a street market. You can find markets anywhere in the world. Here are four of them:

	There are many “floating markets” in Asia; maybe the most unusual is in Thailand(泰国), at a place called Damnoen Saduak. It’s open from six in the morning to the noon every day. People sell fresh apples, bananas and things like these from their boats.
	Many Belgians(比利时人) say that the Grand Place is the most beautiful place in the world. It is the home of a colourful market. It’s open every day except(除了) Monday. On Monday, there’s a wonderful bird market!
	One of the world’s most famous markets is in Mexico City—the Sonora Market. You can buy toys, birds and anything you need. It’s open every day from early in the morning till late at night.
	In London, on Saturdays and Sundays, thousands of young people from all over the city travel to the Camden Market. It’s the place to go for street fashion, CDs and tapes. Many people also go there for fun.

Names	Countries	Features(特色)	Things to Sell	Open Time
The Damnoen Saduak	Thailand	unusual	fresh 1	every day
The Grand Place	Belgium	2	flowers	every day except Monday
The Sonora Market	Mexico	famous	all 3 of things	every day
The Camden Market	4	fashionable	street fashion, CDs and tapes	every 5

单项选择题

急性坏死性龈炎的典型临床特征为

A．发病急，牙龈出血疼痛．有恶臭味

B．发病急，牙龈出血及牙齿松动

C．牙龈出血增生

D．牙龈 * * 出现溃疡

E．多个龈 * * 脓肿，跳痛