卡马西平的中毒血浓度为

A．＞20μg/ml
B．＞12μg/ml
C．50～80μg/ml
D．＞100μg/ml
E．＞150μg/ml

Let’s not wait any longer. He might not      at all.

A．turn over

B．turn up

C．turn on

D．turn down