搜题
问题   更新时间2023/4/3 12:59:00

Why are drifting bottles used? ( )(本题0.5分)
A、 To determine the position of a ship.
B、 To find the direction of a current.
C、 To predict the direction of a ship.
D、 To carry message across the ocean.

B、 To find the direction of a current.
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