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参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】In the United States, the need to protect plant and animal species has become a highly controversial and sharply political issue since the passage of the Enered Species Act in 1973．The act, design...
A.
Because people can't agree as to what species to protect.
B.
Because it is difficult to find an effective way to protect such species.
C.
Because it affects the interests of certain groups of people.
D.
Because it is a major problem involving a series of legal procedures.
【单选题】破坏臭氧层的主要污染源是（）
A.
工厂、家庭用炉灶燃烧矿物燃料
B.
有色金属冶炼工业排放的废气
C.
汽车尾气
D.
工业生产及家庭广泛使用电冰箱和空调释放的氯氟烃化合物
【单选题】Passage One At the Kyoto conference on global warming in December 1997, it became abundantly clear how complex it has become to work out international agreements relating to the en...
A.
it is always difficult to work out international agreements to cut down emissions harmful to the ozone layer
B.
it is no longer easy to reach international agreements relating to the environment
C.
the world has recently become aware of the threat of global warming
D.
the problem of global warming has largely been solved
【多选题】中国在坚持和平共处五项原则基础上同各国发展友好合作，推动构建新型国际关系，深化拓展( )、( )、( )的全球伙伴关系，致力于扩大同各国利益的汇合点。
A.
友好
B.
互助
C.
平等
D.
开放
E.
合作
F.
共赢
【单选题】In the United States, the need to protect plant and animal species has become a highly controversial and sharply political issue since the passage of the Enered Species Act in 1973. The act, desig...
A.
to describe the difficulties in solving humanity's current problems
B.
to present the different views on humanity's current problems
C.
to yze the contradiction between countries in dealing with humanity's current problems
D.
to point out that humanity's current problems can only be solved through the cooperation of nations
相关题目：
【单选题】臭氧层的作用是（）。
A.
用于人类呼吸
B.
阻挡紫外线对人类的侵害
C.
吸收有害气体
D.
维持生态平衡
【单选题】国际奥委会是一个具有法律地位和永久继承权的法人团体，总部设在（）。
A.
法国
B.
美国
C.
瑞士
【单选题】列与保护臭氧层有关的是（）。
A.
蒙特利尔议定书
B.
巴塞尔公约
C.
保护臭氧层维也纳公约
D.
关贸总协定
【多选题】臭氧层的作用
A.
保护作用
B.
加热作用
C.
温室气体的作用
D.
电离层的作用
E.
垂直对流作用
【单选题】In the United States, the need to protect plant and animal species has become a highly controversial and sharply political issue since the passage of the Enered Species Act in 1973．The act, design...
A.
Because people can't agree as to what species to protect.
B.
Because it is difficult to find an effective way to protect such species.
C.
Because it affects the interests of certain groups of people.
D.
Because it is a major problem involving a series of legal procedures.
【单选题】对于国际商务活动而言，有两种成本是至关重要的，即（）
A.
生产成本与沟通成本
B.
沟通成本与运输成本
C.
生产成本与运输成本
D.
固定成本与变动成本
【单选题】臭氧层：气候变暖
A.
偷猎：物种灭绝
B.
森林：水土流失
C.
干旱：土地沙化
D.
酸雨：水源污染
【单选题】破坏臭氧层的主要污染源是（）
A.
工厂、家庭用炉灶燃烧矿物燃料
B.
有色金属冶炼工业排放的废气
C.
汽车尾气
D.
工业生产及家庭广泛使用电冰箱和空调释放的氯氟烃化合物
【单选题】破坏臭氧层的物质主要是（ ）｡
A.
氟利昂
B.
二氧化碳
C.
酸雨
D.
紫外线
【单选题】在国际商务单证缮制的基本要求中，()是单证工作的前提。
A.
正确
B.
整洁
C.
及时
D.
简明
【单选题】按国际分类法属于( )能量饲料。
A.
玉米
B.
鱼粉
C.
骨粉
D.
石粉
【单选题】Passage One At the Kyoto conference on global warming in December 1997, it became abundantly clear how complex it has become to work out international agreements relating to the en...
A.
it is always difficult to work out international agreements to cut down emissions harmful to the ozone layer
B.
it is no longer easy to reach international agreements relating to the environment
C.
the world has recently become aware of the threat of global warming
D.
the problem of global warming has largely been solved
【单选题】国际保护臭氧层日是( )。
A.
42526
B.
42482
C.
42629
D.
42689
【单选题】“国际保护臭氧层日”是()。
A.
6月5日
B.
4月22日
C.
43359
D.
11月15日
【多选题】中国在坚持和平共处五项原则基础上同各国发展友好合作，推动构建新型国际关系，深化拓展( )、( )、( )的全球伙伴关系，致力于扩大同各国利益的汇合点。
A.
友好
B.
互助
C.
平等
D.
开放
E.
合作
F.
共赢
【单选题】国际直接投资的主要方式是（）。
A.
投资建新厂
B.
跨国并购
C.
合作经营
D.
合作开发
【单选题】In the United States, the need to protect plant and animal species has become a highly controversial and sharply political issue since the passage of the Enered Species Act in 1973. The act, desig...
A.
to describe the difficulties in solving humanity's current problems
B.
to present the different views on humanity's current problems
C.
to yze the contradiction between countries in dealing with humanity's current problems
D.
to point out that humanity's current problems can only be solved through the cooperation of nations