You may use any reference materials you need to answer the quiz.
回答这些问题时，你可以参考任何资料。
Then find out the difference between your answer and the answer given by reference books.
然后找出你的答案和参考书中给出的答案之间的差异。
These reference books will answer to our needs.
这些参考书符合我们的需要。
Ask-Answer community is a new type of reference service.
问答社区是一种全新的参考咨询服务模式。
Answer: It will be like this if the Reference System is really broken.
如果真正能够打破了参照系，那就是这个样子。
In order to answer this question, you need a point of reference.
为了回答这些问题，你需要一点参考。
There can hardly be a definite answer (for reference), but does it matter?
一个确定的答案(供参考)几乎是没有的，但又有什么关系？
There can hardly be a definite answer (for reference), but does it matter?
一个确定的答案(供参考)几乎是没有的，但又有什么关系？
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