单项选择题

You are docking a vessel．Wind and current are most favorable when they are（）.

A.crossing your course in the same direction
B.crossing your course in opposite directions
C.parallel to the pier from ahead
D.setting you on the pier

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You are anchoring in a river where the current is from one direction only.The best way to lay out two anchors is to have them（）.

A.Directly in line with the bow
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C.So that their lines form an angle
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C.They cause diurnal tides to become mixed
D.They have a decreased range from normal