正常成人每日需要的钾盐量为（）
A.1～1.5g
B.2～3g
C.3.5～4g
D.5～6g
E.7～8g
参考答案：B
下列各组中，划线词语意思不相同的两项是[ ]
A．山不在高，有仙则名/莫名其妙
B．死者长已矣／死而后已
C．菊之爱，陶后鲜有闻／鲜为人知
D．便舍船/屋舍俨然
The boy went swimming in the deep lake， his mother's fear for his safety．
A．but for
B．apart from
C．regardless of
D．instead of
