诊断急性肺水肿的依据是（）
A.劳力性呼吸困难
B.端坐呼吸
C.肝颈返流征阳性
D.颈静脉怒张
E.神志不清
参考答案：B
Some people say that Mars should be protected as a wildlife reserve where we do everything possible to avoid pollution, on the _______ that life could exist on it.
A．assumption
B．arrangement
C．assistance
D．appointment
首选用于治疗窦性心动过速的药物是（）
A.普鲁卡因胺
B.维拉帕米
C.普萘洛尔
D.美西律
E.地高辛
