题海让大学四年没有难题
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单选题 In IALA Region B, when entering from sea, a day mark on the port side of the channel would be indicated on a chart by a______

A. red triangle with the letter R

B. White Square with the letters GR

C. green square with the letter G

D. white triangle with the letters RG

航海英语课程封面

学科:航海英语

时间:2026-05-09 01:12:01

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