女，34岁，反复咳嗽20余年，结合图像，最可能的诊断是()
A．左肺脓肿
B．肺炎
C．先天性支气管闭锁
D．支气管囊肿
E．肺隔离症
参考答案：E
It’s on the festival occasions ______ the family get together______ he misses his late father.
A．where; that
B．which; when
C．when; which
D．that; that
氧气是（）燃气体。
A.易
B.不易
C.可
D.助
