【正确答案】 C

【答案解析】teacher： Hi, Tim. How is your essay getting on? student： Hello, Mrs. Black. I'm worried about it. I have some difficulties in gathering referencing materials. Is it necessary to do this? teacher： Yes, it's a must. A paper can never be completed without authentic reference material. And perhaps referencing can also be said to be the most important part of the paper. If you write stuff and don't give respective reference material to back up your findings then you will surely fail. student： OK. Then how to do it? Could you give me some advice? teacher： Well, with each page you write and with each date change you have to provide citations from which you have directly abstracted the information. student： Then is there any special requirement for citing sources? teacher： No. Citations can be taken from a book，journal, novel and etc. But the important thing is that you have to rephrase everything in your own words and provide the citations correctly. Avoid plagiarism at all times. student： I see. But can I use the online recourses? Searching online is much faster and more convenient than reading books. teacher： As you can't ensure the accuracy of information from online sources, I wouldn't recommend you to quote much information from the web. Of course the electronic periodicals are the exception. You can have available access to more than 1,000 electronic periodicals in the library. student： I know how to do it now. Thank you very much, Madam.

【正确答案】 A

【正确答案】 C