A 过去式或过去分词;B 不定式;C 动名词或现在分词的被动式;D 现在分词或动名词。problem和exist是逻辑上的主谓关系,所以本题考查现在分词短语左后置定语:the most serious environmental problem existing in China 在中国存在的最严重的环境问题。故选D。
D解析 考查动词和状语从句的省略式:句意:中国的环境问题如果任由不解决会更严重的。四个选项都可以接过去分词unsolved,make使得,但是应该是被动式,remain仍然,应该是主动式,keep保持,应该是被动,leave使…保持…状态,也是被动,只有D项符合。在if和left之间省略了they are。选D。考点:考查动词和状语从句的省略式反馈...
The peculiarity of China is described first, because this is strongly reflected in the deepening of environmental awareness and policy formation. The second point is the formative period of environmental policies, from 1973 to the mid-1990s. The third part is the change in 20 years after that....
Environmental Problems and Challenges in CHINA. The article focuses on the environmental problems and challenges in China. It is pointed out that as a result of fast economic growth in China, it leads to... Bo-Jie,Fu,Xu-Liang,... - 《Environmental Science & Technology》...
Pollution and environmental disputes in China: latest trends and challenges Based on systematic literature study and policy document analysis, this paper investigates the environmental pollution-induced food safety problem in China... 王,燦発 - 《Research on Environmental Disruption》 被引量: 0发表: ...
百度试题 结果1 题目6. The environmental problems in China may weaken if left(leave) unsolved. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
North America. Acid rain is a serious problem in central, southern, southwestern and eastern China. Tests of the Ph level of rainwater in 106 cities revealed that the range of ph level in water was between 4.3 and 7.47 and that 43 cities or 40.6% had a Ph ...
CHICAGO, Dec. 18 (Xinhua) -- The Energy Policy Institute at the University of Chicago (EPIC) is launching a groundbreaking effort that will combine frontier economics research with key local partnerships to produce tested, scalable policy solutions for China to confront its emissions problem. ...
The findings indicated that domestic as well as the international collaborations were effective in controlling the present problem of environmental pollution, and suggested a need for collaborative agreements to amend the Environmental Protection Law (EPL). The analytical findings determined that the ...
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