单项选择题
A.一天劳累的工作结束时,他下棋放松一下。 B.他工作了一天非常劳累,下班后下棋放松一下。 C.他在劳累的工作了一天以后,下棋放松一下。 D.他通过下棋放松自己,在劳累的一天工作之后。
A.One. B.Two. C.Three. D.four.
A.Because everyone have the same chance in this way. B.Because the IQ is an average and doesn't say any thing about special abilities. C.Because they are the only three types of questions that can be used at present. D.Both A and B.