----Do you hear that Mary quarreled with Lily this morning?

----Are you sure?But they acted_____nothing had happened.

A．as if

B．as long as

C．even if

D．so that

失血性休克患者，经手术止血并充分扩容后，24小时内一直无尿，使用呋塞米无效。下一步的补液方案应是（）

A.口服补液盐

B.每天经静脉途径给予2000～2500ml液体

C.3天内不补充液体

D.不补液，仅口服山梨醇导泻

E.按"显性失水+不显性失水-内生水"公式补液