2. 外语
  3. In this passage, scientists warn of______. According to the National Academy of Science report, sudden climate change could be

In this passage, scientists warn of______. According to the National Academy of Science report, sudden climate change could be

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问题 In this passage, scientists warn of______.
According to the National Academy of Science report, sudden climate change could be triggered (触发) by______.
选项 A、geological shifts
B、human impacts on the environment
C、natural disasters
D、long-term droughts
答案B
解析 细节题。由第四段可知，气候的缓慢变化，加上人类对环境的其他影响，可能导致突然的气候变化。因此B是正确答案。
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