12个月的婴儿铁的参考摄入量为()mg。
A.6
B.8
C.10
D.12
参考答案:D
根据新课程标准的要求,请设计如何在思想品德课的教学中实施启发式教学
he boy made the same mistakes ________,which,of course,made his parents very angry.[ ]
A.over and over again
B.more or less
C.sooner or later
D.here and there