肺心病呼吸衰竭急性加重期治疗的关键是()
A.强心苷的及时应用
B.选择适当的利尿药
C.加强护理
D.控制呼吸道感染,改善呼吸功能
E.应用呼吸兴奋剂
参考答案:D
This is______ European snake and that is ______ African snake. [ ]
A. a; an
B. an; a
C. a; a
D. an; an
----Why isn’t Cathy here yet?
--- She _________ to be picked up at the station.
A.could wait
B.must wait
C.might be waiting
D.can be waiting