The order came that the medical supplies          to Beijing for the H1N1 flu soon.

A．would be sent

B．should send

C．be sent

D．must be sent

在急性肠梗阻保守治疗的各项措施中，关键性的是（）

A.胃肠减压

B.纠正水、电解质紊乱，酸碱平衡失调

C.缓解肠痉挛性疼痛

D.输血

E.大量应用抗生素