单项选择题
Blood flowing from a cut artery appears（）.
A.dark red with a steady flow B.bright red with a steady flow C.bright red and in spurts D.dark red and in spurts
单项选择题 Bleeding from a vein may be ordinarily controlled by（）.
单项选择题 Bleeding from a vein is（）.
单项选择题 Basic emergency care for third degree electrical burn is to（）.
