2. 考研
  3. Scientists have spent years into the effects of certain chemicals on the human brain, but with no result.

Scientists have spent years into the effects of certain chemicals on the human brain, but with no result.

admin2009-05-21  30
问题 Scientists have spent years into the effects of certain chemicals on the human brain, but with no result.
选项 A、studying
B、researching
C、investigating
D、inspecting
答案B
解析 study意为“学习，研究”，指为获取知识或理解某课题之目的而运用头脑； research意为“研究，调查”，指从事或实行研究，通常与into搭配使用；investigate意为“调查，检查”，指详细地观察或查询；inspect意为“检察，视察”，指仔细、挑剔地检查，特别是为了发现毛病。根据空格后面的into可知，应该选用research。
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