问题
单项选择题
The purpose of storm oil in a sea anchor is to（）.
A.weigh down the anchor
B.lubricate the anchor
C.repel dangerous fish
D.smooth the sea
答案
参考答案：D
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The purpose of storm oil in a sea anchor is to（）.
A.weigh down the anchor
B.lubricate the anchor
C.repel dangerous fish
D.smooth the sea
参考答案：D