2. 职称考试
  3. Our research has focused on a drug which is so __________as to be able to cha...

Our research has focused on a drug which is so __________as to be able to cha...

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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
解析考查形容词辨析。句意为“我们的研究集中在一种——能够改变大脑化学的药物上”。powerful“强有力的”，inflHelltial“有影响的，有势力的”，monstrous“巨大的”，vigorous“精力旺盛的，强健有力的”。这四个形容词中。只有powerful(有效力的)可与表示药物的名词搭配。故选A。
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