to sunlight for too much time will do harm to your skin.

A．Exposed

B．Having exposed

C．Being exposed

D．After being exposed

一氧化碳中毒现场急救首先采取的是（）

A.吸氧

B.建立静脉通道

C.就地心肺复苏

D.清理皮肤

E.撤离现场