Bungee jumping is an adventurous sport, popular with young adults,         —____courage matters more than strength．

A．whose

B．that

C．of which

D．where

支气管镜检查的禁忌证包括（）

A.活动性肺结核

B.近期严重咯血

C.急性上呼吸道感染

D.呼吸困难严重、气管切开困难者

E.呼吸道有假膜、分泌物，引流不畅