2. 职称英语
  3. Climatic shifts are so gradual as to be indistinguishable at first from ordinary

Climatic shifts are so gradual as to be indistinguishable at first from ordinary

游客2025-02-25  1
问题 Climatic shifts are so gradual as to be indistinguishable at first from ordinary fluctuations in the weather.
选项 A、so gradual as to be indistinguishable
B、so gradual they can be indistinguishable
C、so gradual that they are unable to be distinguished
D、gradual enough not to be distinguishable
E、gradual enough so that one cannot distinguish them
答案 A
解析 B、E中的词语搭配不当。C：没有A简洁；D：enough…to属感情色彩用语，在GMAT中不倾向使用；选A：系表结构，主语单一，用“so…as to”结构。
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