单项选择题
A.can be absorbed through the skin
B.causes irreversible damage to eye tissue
C.is a very unstable product
D.All of the above
单项选择题 A crew member suffering from hypothermia should be given（）.
单项选择题 You are on a 165-foot (50.3 meters) long vessel with a draft of 9 feet (2.7 meters) and twin screws. Which statement about rescuing a survivor in the water with ship pickup is TRUE? （）
单项选择题 Where there are multiple accident victims，which type of injury should be the first to receive emergency treatment?（）