单项选择题 A major health hazard of the product tert-butylamine is that it（）.

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? （）