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【简答题】
听对话，选择正确答案。 ( ) 1. A. He's back now. B. He's in Zhenzhou now. C. He's gone to Zhenzhou now. ( ) 2. A. 20%. B. 25%. C. 30%. ( ) 3. A. The woman. B. The man. C. The woman and the man. ( ) 4. A. He gets up late today. B. His bike is broken. C. Because the traffic is bad. ( ) 5. A. Tea. B. Coffee. C. Either.
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皮皮学刷刷变学霸
举一反三
【单选题】在风流很小的情况下,航向误差是引起积算船位(DR)误差的主要要素之一,若航向存在2误差,当航行100n mile后,船位左右偏移量约为 。
A.
2n mile
B.
3.5n mile
C.
4/3n mile
D.
8/3n mile