- 1. 代數學[U] I delved into the study of algebra for the last three months. 過去三個月來我都專心在鑽研代數學。
- 2. 代數學課本；代數學論文
5.A boy spent $24 on rowing, always hiring a boat at $1.5 per hour or a better one at $2 per hours. Had he spent on the first what he actually spent on the second, and on the second what he actually spent on the first, he could have had two...
X pages of this book each day 3 days so 3X pages for 3 days! 80 pages is not applicable 2010-10-17 13:26:52 補充： A story book has 80 pages. Ben reads X pages of this book each day. (a...