问题
单项选择题
All inflatable life rafts have（）.
A.safty straps from the overhead
B.built in seats
C.releasing hooks at each end
D.water stabilizing pockets
答案
参考答案：D
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All inflatable life rafts have（）.
A.safty straps from the overhead
B.built in seats
C.releasing hooks at each end
D.water stabilizing pockets
参考答案：D