迷路炎的症状是()
A.眩晕
B.听力减退
C.两者均有
D.两者均无
参考答案:C
After putting on a self-contained breathing apparatus,you open the air supply and hear a continuous ringing of a bell. What does this mean?().
A.The unit is working properly
B.The face mask is not sealed properly
C.The air bottle needs to be refilled
D.The air supply hose has a leak
抗高血压药的种类及代表药物
β受体阻断剂(β-RB)
A.氯沙坦B.吲达帕胺C.依那普利D.氨氯地平E.美托洛尔