题目：
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
A.directly under the boom
B.moving away from the boom
C.stopped dead in the water
D.tied to the boom
答案：
参考答案：A
Before personnel are lifted from a vessel in a personnel basket，the vessel should be（）.
A.directly under the boom
B.moving away from the boom
C.stopped dead in the water
D.tied to the boom
参考答案：A
