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问题 单项选择题

国际社会就管理外空活动达成的具有普遍约束力的国际规范不包括( )

A．外空适用“先占先有”的主权排他原则
B．各国应该采取措施避免外空事件对地球环境造成负面影响
C．禁止任何国家对外空或者天体造成污染
D．各国对外空享有平等的受益权

答案

参考答案：A

解析： 本题考查的知识点是管理外空活动的国际规范。
[要点透析] 根据《外空条约》的规定，各国不得由国家通过主权要求、使用或占领等方法将包括月球与其他天体在内的外层空间据为己有。所以，A项表述错误。

填空题

乙炔的相对密度（），对空气的相对密度为（），故比空气（）。
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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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