Global warming refers to the average temperature of the atmosphere, oceans, and landmasses of Earth. Some species that cannot s

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问题 Global warming refers to the average temperature of the atmosphere, oceans, and landmasses of Earth.
Some species that cannot shift their ranges toward the poles may become extinct.

选项 A、Y
B、N
C、NG

答案A

解析 参见文章第2段倒数第2句:species that cannot do so may become extinct。此处的do so指的是上半句中的shift their ranges toward the poles or to higher elevations,所以本题的答案为Y。
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