单项选择题

What is normally used to pass a mooring line to a dock?（）

A.Distance line
B.Gantline
C.Heaving line
D.Tag line

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单项选择题

A.The efficiency increases
B.The efficiency decreases
C.The efficiency remains the same
D.The efficiency cannot be determined.

单项选择题

A.Shuga
B.Floe
C.Spicule
D.Bergy bit

单项选择题

A.To navigate intentionally
B.To navigate intensely
C.To navigate carefully
D.To navigate completely