问题
单项选择题
A SART can be fixed on（）.
A.a mother ship
B.a lifeboat
C.a life craft
D.all of A,B,C
答案
参考答案：D
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A SART can be fixed on（）.
A.a mother ship
B.a lifeboat
C.a life craft
D.all of A,B,C
参考答案：D