左心衰竭最严重的形式是()
A.端坐呼吸
B.咯血
C.劳力性呼吸困难
D.夜间阵发性呼吸困难
E.急性肺水肿
参考答案:E
The performance _______ nearly three hours, but few people left the theatre early.
A.covered
B.reached
C.played
D.lasted
摆台时,应根据不同国家和地区客人的不同宗教信仰、习俗、爱好等有针对性地选择花型。