A. 水平投影的全部 B. 水平投影的2倍 C. 水平投影的一半 D. 水平投影的3/4
A. 正确 B. 错误
A. to keep clear of the breakwater B. that there is much berth space near the breakwater C. Don't drop anchor too close to the breakwater D. to keep the breakwater within sight
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