According to the recent research, heavy coffee drinking and heart attack is not

题干

According to the recent research, heavy coffee drinking and heart attack is not necessarily and effect

A．reason

B．impact

C．fact

D．cause

上一题下一题 0.64难度单项选择更新时间:2012-08-09 02:51:43

小学学科试题库

初中学科试题库

高中学科试题库