( )是股份有限公司通过发行股票向社会公众筹集资金的市场。

A．证券发行市场

B．证券流通市场

C．股票发行市场

D．股票流通市场

People will find themselves suffering from headache and watering eyes, and even snowhlindness, when______to several hours of "snow light".

A．being exposed

B．having been exposed

C．exposed

D．exposing