Urgent research into the ecological balances of sea life and how they are affected by pollution is needed. As scientific knowledge stands now, we do not know how much damage the oceans can endure. The oceans contain enormous resources of energy, food, and raw materials. Judiciously exploited, ...
calling for united solutions(解决办法).Half the Nile Basin's countries are among the worldfs poorest nations; yet, somehow, they must find the resources, skills and political will to overcome these challenges.语篇解读:尼罗河现在面临着水源短缺、水质恶化这两大问题,尼罗河的生态系统遭到了 破坏,亟待...
Finally, the refining and burning of petroleum and its products can cause air pollution. Advancing technology and strict laws, however, are helping control some of these adverse environmental effects. 题目 收藏 1234567891011121314 2.According to paragraph 1, which of the following is true about ...
He is the manager of the Human Resources Department___ I must talk to.(分数:2.00) A.what B.which C.whom √ D.where 解析:解析:句意:他是人力资源部经理,我一定要跟他谈话。定语从句题。分析句子结构可知,空格后为一个定语从句,其先行词是the manager,所以空格处需填一个...
3.According to paragraph 1, which of the following is true of all arid regions? A. They include at least some freshwater lakes. B. They have similar distributions of plants and animals. C. They are greatly affected by changes in the amount of rain they receive. ...
These are whole ecosystem problems,calling for united solutions(解决办法).Half the Nile Basin's countries are among the world's poorest nations;yet,somehow,they must find the resources,skills and political will to overcome these challenges. 语篇解读:尼罗河现在面临着水源短缺、水质恶化这两大问题,尼罗...
The boss of Oracle is hardly alone among corporate chiefs in having a reputation for being rather keen on himself. Indeed, until the bubble burst and the public turned nasty at the start of the decade, the worship of the celebrity chief executive seemed to demand bossly narcissism, as ...
According to paragraph 4, which of the following was true about ancient Mayan communities? A. They each created their own separate trading networks with communities in the nearby highlands. B. They all had many luxury materials that they were able to trade for resources that they lacked. C. ...
1.According to paragraph 1, which of the following is true of transgenic plants that produce the protein Bt? A. They are resistant to certain herbicides. B. They grow best in the United States. C. They were treated with the chemicals glyphosate. D. They are resistant to destruction...
Another traditional assumption is that if people who have money expect prices to go up they will hasten to buy. If they expect prices to go down, they will postpone buying. But research surveys have shown that this is not always true. The expectations of price increases may not stimulate ...