以下哪种情况有助于鉴别心源性哮喘与支气管哮喘()
A.端坐呼吸
B.咯粉红色泡沫痰
C.哮鸣音与双肺底小水泡音
D.高血压
E.心脏扩大
参考答案:B
Which equipment is the primary source of generating a locating signal?()
A.DSC only
B.DSC and EPIRB
C.SART and DSC
D.EPIRB and SART
结合实际谈谈你对节俗特点的理解。