您要查找的是不是：
- course reference book database 课程参考书数据库
- teaching reference book database 教学参考书数据库
- This reference book is very useful to our study. 这本参考书对我们的研究很有用。
- Is this reference book of any use to me? 这本参考书对我有用处吗？
- I like to have my reference book within my reach. 我喜欢把参考书放在随手拿得到的地方。
- The book is used as a reference book. 这本书被用来做参考书。
- I should recommend it as a useful reference book. 我愿意推荐它作为一本有用的参考书。
- Tony used no reference books in class. 托尼上课时不使用参考书。
- The teacher haa make out a list of reference book. 教师已开出了一份参考书单。
- Our reference book proved to be insufficient. 我们的参考书显得不够。
- We train them to make use of reference books. 我们训练他们使用参考书。
- You can use these reference books, if necessary. 如果必要，你可用这些参考书。
- The teacher has made out a list of reference books. 教师已开出了一份参考书单。
- He burrowed into reference books for research data. 他查阅叁考书籍寻求研究资料。
- There are no unexpired patents for this product in the Orange Book Database. （鼠标放在图片上有书名）当当网上商城折扣购买， 全部免运费！
- This reference book has a large circulation. 这本参考书发行量很大。
- The information is culled from various reference books. 这份资料是从各种参考书中摘出的。
- This is a most useful reference book. 这是一本非常有用的参考书。
- I'm going to put it into reference book. 我将用它买参考书。
- The reference book should be in the reading-room. 这本参考书可能在阅览室里。
