试题与答案

2004年10月20日,河南省大平煤矿发生特大瓦斯爆炸事故.据瓦斯检测系统显示,

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题目:

2004年10月20日,河南省大平煤矿发生特大瓦斯爆炸事故.据瓦斯检测系统显示,发生事故的矿井在2分27秒时间内瓦斯浓度由1.49%升高到40%以上,瓦斯遇到火源发生了爆炸.事故造成了重大人员伤亡,大部分遇难者因窒息而亡.

(1)瓦斯的主要成分是______,瓦斯发生爆炸是因为瓦斯的主要成分具有______.

(2)事故发生时造成工人窒息而死的原因是______.

(3)为了防止瓦斯爆炸,煤矿的矿井里必须采取______、______等安全措施.

答案:

(1)瓦斯的主要成分是CH4,瓦斯发生爆炸是因为瓦斯的主要成分具有可燃性.故填:CH4,可燃性.

(2)瓦斯不能供给呼吸,瓦斯燃烧消耗了氧气,从而造成了工人窒息而死的悲剧.故填:瓦斯不能供给呼吸,瓦斯燃烧消耗了氧气.

(3)为了防止瓦斯爆炸,煤矿的矿井里必须采取通风、严禁烟火等安全措施.故填:通风、严禁烟火.

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A.右额颞脑挫伤,脑疝

B.右额颞急性硬膜下血肿,脑疝

C.右额颞急性硬膜外血肿,脑疝

D.右额颞急性硬膜下积液,脑疝

E.右额颞脑内血肿,脑疝

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题型:填空题


Health officials in western Siberia are to begin in slaughter of thousands of birds today after identifying Russia’s first outbreak of a bird flu strain that can be fatal in humans. Doctors in neighboring Kazakhstan have also (1) that a 19-year-old poultry worker (2) admitted to hospital with (3) of bird flu, only to be diagnosed (4) double pneumonia.
The H5N1 strain of avian (5) has killed 60 people (6) 2fib in Vietnam, Thailand, Cambodia and Indonesia, but has rarely been found in birds or humans (7) Asia.
Health officials (8) that HSN1 is infecting migrating birds, which could spread the (9) into Europe. Earlier this year China registered the first outbreak of H5N1 (10) wild birds, some of which (11) to breeding grounds in Siberia. These birds could come (12) contact with others flying to Europe and North America.
Russia’s (13) began in the Novosibirsk (14) , about 1,750 miles (15) of Moscow in the Asian part of Russia, early last month, but the veterinary service (16) the virus only last week. Valery Mikheyev, the chief sanitary doctor of Novosibirsk, said that teams had been (17) the (18) birds and supervising the slaughter in13 (19) villages. He said, "The state of (20) of the inhabitants of these areas gives (21) cause for alarm. Up to 6,000 people are being (22) per day.
The virus seems to have (23) only private farms that let (24) mix with wild birds. Further outbreaks were registered in the Omsk and Altai regions, but the strain had (25) to be determined, Russia’s Emergency Situations Ministry said.

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