--- When will they finish filming the documentary? --- _________________.

A．Until next month

B．Not until next week

C．A month later

D．For a month

大咯血常发生于以下哪种情况（）。

A.风湿性心脏病，二尖瓣关闭不全

B.风湿性心脏病，二尖瓣狭窄伴肺动脉高压

C.风湿性心脏病，二尖瓣狭窄并关闭不全

D.风湿性心脏病，二尖瓣狭窄并主动脉瓣狭窄

E.先天性心脏病，室间隔缺损