氨甲苯酸(PAMBA)的作用是()
A.抑制纤溶酶原
B.对抗纤溶酶原激活因子
C.增加血小板聚集
D.促使毛细血管收缩
E.促进肝脏合成凝血酶原
参考答案:B
Which is NOT a distress signal?()
A.A continuous sounding with any fog signal apparatus
B.A signal sent by radiotelephone consisting of the spoken word Mayday
C.An International Code Signal of N.C
D.The firing of green star rockets or shells
依据《道路大型物件运输管理办法》,运输大型物件,应按有关部门核定的()行车。