40. Africa is especially susceptible to the effects of global warming partly because it has difficulty feeding its increasing population even without climate change.
答案&解析
40.答案解析C。
由题干关键信息especially susceptible、has difficulty feeding和even without climate change定位到C段。该段第一句指出，非洲尤其容易受到影响，部分原因在于它本身已经很难养活自己，如果要为其快速增长的人口提供食物，即使没有气候变化，它也必须大幅提高产量和生产力。由此可知，题干是对原文的同义转述。题干中的especially susceptible对应原文中的particularly vulnerable;题干中的it has difficultyfeeding its increasing population对应原文中的it is already struggling to feed itself;题干中的even withoutclimate change为原词再现。
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