问题
单项选择题
Which one of the followings is not required on survival crafts?（）
A.Anti-seasickness medicine
B.Immersion suits
C.Axes
D.Lifebuoys
答案
参考答案：D
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Which one of the followings is not required on survival crafts?（）
A.Anti-seasickness medicine
B.Immersion suits
C.Axes
D.Lifebuoys
参考答案：D