能引起人畜共患病的病原体是（）
A.梅毒螺旋体
B.霍乱弧菌
C.布鲁司杆菌
D.淋球菌
E.白喉杆菌
参考答案：C
—____?
—Yes, I want to buy some sugar.[ ]
A. May I help you
B. Do you like to buy anything
C. What can I say for you
D. What are you going to buy
关于肺性P波的描述，下列哪项不正确（）
A.P波形态高尖
B.电压≥0.25mV
C.Ⅱ、Ⅲ、aVF导联较明显
D.IPI>0.03mms
E.为肺心病患者所特有
