2. 外语
  3. Many scientists are warning that the extinction of several species could be brought______by global warming.

Many scientists are warning that the extinction of several species could be brought______by global warming.

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问题 Many scientists are warning that the extinction of several species could be brought______by global warming.
选项 A、about
B、to
C、from
D、with
答案A
解析 词汇：介词1．这是一道词汇题，选项均由介词构成。2．bring about意为“引起……”，因此(A)为正确选项。result in、lead to、cause等都表示“带来……、引起……”。
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