单项选择题

A.苯巴比妥5~8mg/(kg.次),立即肌注
B.地西泮0.2~0.3mg/(kg.次),缓慢静推
C.10%水合氯醛50mg/(kg.次),灌肠
D.氯丙嗪lmg/(kg.次),静注
E.异戊巴比妥5mg/(kg.次),静注