2. 外语
  3. Our research has focused on a drug which is so ______ as to be able to change brain chemistry.

Our research has focused on a drug which is so ______ as to be able to change brain chemistry.

admin2010-04-24  43
问题 Our research has focused on a drug which is so ______ as to be able to change brain chemistry.
选项 A、powerful
B、influential
C、monstrous
D、vigorous
答案A
解析 形容词辨析。powerful具有“有效的”之意，可以构成修饰搭配powerful drug；influential意为“有影响的”，monstrous意为“巨大的”，vigorous意为“精力充沛的”，均不符合句意。
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