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

游客2025-05-05 2

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

解析四个选项中，只有A项powerful能与表示药物的词搭配，效力大的，有效能的；influential有影响力的； monstrous奇形怪状的，巨大的；vigorous精力旺盛的；强壮的。句意：我们研究的焦点是一种效力很强，可以改变大脑化学成分的药物。

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