The passage cites "It’s like being blindfolded and walking toward the edge of a

游客2025-03-25 39

问题 The passage cites "It’s like being blindfolded and walking toward the edge of a cliff," (Para.2) in order to show that_____. [br] According to the passage, over the past 110 000 years, world temperature .

选项 A、has been keeping rising
B、has risen and fallen at regular intervals
C、has experienced no rapid and sudden changes
D、has experienced both smooth and abrupt changes

答案 D

解析细节题。第三段中讲到，研究人员利用从冰川和冰原钻取的冰芯，研究出一个模型，表明世界气温在过去的11万年间有升有降，而且频度不固定，所以A和B都与之不符合。在第四段中又讲，有些变化是缓慢、平稳的，而有些变化是突然的、出乎意料的，并用例子说明，所以C不符合，而D是符合的，故D是正确答案。

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