After striking his head on a tree while falling from a ladder, a young man is admitted to the emergency department. He's unconscious and his pupils are nonreactive. Which intervention would be the most dangerous for the client

A．Give him a barbiturate.

B．Place him on mechanical ventilation.

C．Perform a lumbar puncture.

D．Elevate the head of his bed.

按照国际惯例，饭店一般规定任何衣物的丢失或损坏，其赔偿额不超过洗熨费的（）倍。

A.10~15

B.20

C.5

D.5~10