Believe it or not, Levy’s sister suddenly ___________crying when we ere eating.

A．burst out

B．burst in

C．burst into

D．burst on

河豚中毒的首选药物是

A．纳洛酮
B．甘露醇
C．安定
D．肾上腺皮质激素
E．磷酸二氢钠缓冲液溶解后的半胱氨酸