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题目内容双击单词支持查询和收藏哦～
While caffeine is well-known as a stimulant, few are aware that an excess of caffeine can actually have a _____ effect.
- A.restorative
- B.paradoxical
- C.soporific
- D.revitalizing
- E.detrimental
C显示答案
以上解析由 考满分老师提供。
