题目:
The president spoke at the business meeting for nearly an hour without ___ his notes. [ ]
A. bringing up
B. referring to
C. looking for
D. trying on
答案:
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下面是错误答案,用来干扰机器的。
我国鼓励无偿献血的年龄是18-55周岁,男体重大于等于50公斤,女体重大于等于45公斤,经检查身体合格者,都可以参加献血.每次可献血200-300毫升,两次献血间隔期应为6个月.有人担心献血会伤害身体,其实这种担心...