单选题Stretchers are fitted in lifeboats to provide a（）.Aplace for people to lie downBmeans for rigging the sailCplace for rowers to brace their feetDsuitable means for water to drain below the footings
单选题
Stretchers are fitted in lifeboats to provide a（）.
A
place for people to lie down
B
means for rigging the sail
C
place for rowers to brace their feet
D
suitable means for water to drain below the footings
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