A government official was murdered last Friday and the police are collecting information that is ____ to the case.

A．similar

B．relevant

C．devoted

D．addicted

以下何种病人可作口对口人工呼吸（）.

A、吞服剧毒物者

B、口鼻受伤严重缺损者

C、一氧化碳中毒