题目内容
【题目】According to the recent research, heavy coffee drinking and heart attack is not necessarily __________ and effect.
A. reason
B. impact
C. fact
D. cause
【答案】D
【解析】句意:根据最近的调查研究,喝浓咖啡与患心脏病并没有必然的因果关系。cause and effect因果。
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