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？
