肺结核大咯血的处理包括（）

A.应用止血剂

B.病人头低脚高位，促进血块和痰液的排出，保持呼吸道通畅

C.应用吗啡镇静

D.缓慢静脉注射血管升压素

E.反复大咯血不能控制者，可考虑手术

I have been keeping the portrait ________．I can see it every day, as it always reminds me of my childhood in Paris.

A．since

B．where

C．as

D．if