【简答题】将八进制的37.416转换成二进制___________,将二进制的11111.10000111B转换为八进制__________.
【单选题】天津是我国研发和生产锂离子电池的重要基地。锂离子电池正极材料是含锂的二氧化钴(LiCoO 2 ) ,充电时LiCoO 2 中Li 被氧化,Li + 迁移并以原子形式嵌入电池负极材料碳(C 6 ) 中,以LiC 6 表示。电池反应为CoO 2 +LiC 6 LiCoO 2 +C 6 ,下列说法正确的是 [ ]
A.
充电时,电池的阴极反应为LiC 6 -e - ===Li + +C 6
B.
放电时,电池的正极反应为CoO 2 +Li + +e - ===LiCoO 2
C.
羧酸、醇等含活泼氢的有机物可用作锂离子电池的电解质
【单选题】A wise Captain gives clear direction in his ______ for the officers on watch to call him if in any doubt whatsoever.
D.
Master's Standing Orders
【简答题】A.He had made the right choice. B.She had no idea about that. C.It is not wise for him to do that. D.He will soon return.
【单选题】He is so wise a man that all the people______.