呼吸衰竭患者最早、最突出的表现是
A.发绀
B.呼吸困难
C.心率加快
D.血压下降
E.精神反常
参考答案:B
----Have you put your hands ________a job?
-----No, I have applied ________several companies, but none has given me an answer.
A.with; to
B.with; for
C.on; to
D.on; for
何谓腹股沟三角?