There is _______ on Channel 3. Try others.

A．something interesting

B．interesting something

C．nothing interesting

D．anything interesting

鼻导管给氧操作，下述正确的是()。

A．给氧前用干棉签清洁病人鼻孔

B．导管插入长度为鼻尖到耳垂的1/2

C．给氧时，调节氧流量后插入鼻导管

D．停止给氧时，应先关氧气开关

E．氧气筒放置距暖气应5m