2. 外语
  3. At present, man’s efforts ______. The writer may probably believe that ______.

At present, man’s efforts ______. The writer may probably believe that ______.

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问题 At present, man’s efforts ______.
The writer may probably believe that ______.
选项 A、few people have realized how serious the problem of pollution is
B、the problem of pollution has not yet become a main concern
C、the problem is not so serious that it does not require an immediate solution
D、people are so eager for the benefits of modern society that they pay little attention to the problem
答案D
解析 第三段第一、二句指出，现在许多科学家正担心全球污染。一些专家宣布自然平衡正遭破坏，以致人的生存受到威胁。可见，A和B项不对。文章第四段末尾指出，pollution has become a serious problem．同样C也不对。采用排除法，D为正确答案。
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