目前,全国城市垃圾堆存量已近70亿吨;占用土地多少万亩。全国有近多少的大中城市陷入了

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问题:

目前,全国城市垃圾堆存量已近70亿吨;占用土地多少万亩。全国有近多少的大中城市陷入了垃圾的包围之中。

考点:安全环保知识竞赛垃圾分类知识竞赛垃圾分类知识竞赛题库
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下列行为属于自负的是[ ]

A、课堂上不敢举手,不敢当众表达自己的看法

B、对别人说的话过于敏感

C、常常过高估计自己,看不起别人,自以为是

D、实事求是地看待自己,既能看到自己的优点,也能看到自己的不足

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补充句子。

1.这件衣服 _______________________________

2.我国的国旗是________________________________

3.闪闪的星星像________________________________

4.菜园里有__________________________________

5.小松鼠_______________________________________

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下列选项不是血管内金属支架成形术的适应证的是()。

A.髂动脉、股动脉、冠状动脉、肾动脉、肺动脉、腔静脉、主动脉狭窄性疾病

B.偏心性狭窄等不适宜做单纯球囊扩张成形术者

C.经皮腔内球囊扩张成形术后再狭窄或者急性闭塞以及发生动脉痉挛者

D.经皮腔内球囊扩张成形术后,为预防再狭窄或急性闭塞时

E.广泛的未梢血管狭窄

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液压千斤顶()作为永久支承设备。

A.不可

B.允许

C.防止

题型:问答题 简答题

Although there are many skillful Braille readers, thousands of other blind people find it difficult to learn that system. They are thereby shut (1) from the world of books and newspapers, having to (2) on friends to read aloud to them.

A young scientist named Raymond Kurzweil has now designed a computer which is a major (3) in providing aid to the (4) .His machine, Cyclops, has a camera that (5) any page, interprets the print into sounds, and then delivers them orally in a robot-like (6) through a speaker. By pressing the appropriate buttons (7) Cyclops’s keyboard, a blind person can "read" any (8) document in the English language.

This remarkable invention represents a tremendous (9) forward in the education of the handicapped. At present, Cyclops costs $ 50,000. (10) , Mr. Kurzweil and his associates are preparing a smaller (11) improved version that will sell (12) less than half that price. Within a few years, Kurzweil (13) the price range will be low enough for every school and library to (14) one. Michael Hingson, Director of the National Federation for the Blind, hopes that (15) will be able to buy home (16) of Cyclops for the price of a good television set.

Mr. Hingson’s organization purchased five machines and is now testing them in Maryland, Colorado, Iowa, California, and New York. Blind people have been (17) in those tests, making lots of (18) suggestions to the engineers who helped to produce Cyclops.

"This is the first time that blind people have ever done individual studies (19) a product was put on the market," Hingson said. "Most manufacturers believed that having the blind help the blind was like telling disabled people to teach other disabled people. In that (20) , the manufacturers have been the blind ones.

2()

A.dwell

B.rely

C.press

D.urge

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