6. 答案

　　B

　　解析

　　主旨大意题。通读全文可知，本文主要就是介绍团购(group buying)。

　　7. 答案

　　C

　　解析

　　细节理解题。根据文章第四段描述可知，当赵磊发现真正便宜的东西时，他会将链接转发给他的朋友或同事，如果购买者多，自然会砍下一定的价格。

　　根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

　　Note-taking is a skill that can help you do well on all your schoolwork — everything from taking tests to researching a paper. But unfortunately, most schools don’t have classes that teach you how to take notes. So here are some tips.

　　Write down key facts:

　　It can take some experimenting to figure out what information really is helpful, so keep trying and don’t give up.

　　8

　　For example, some teachers may mention lots of dates and facts in class but only write the key ones on the board. Other teachers may not write anything down, but they may repeat a certain date or piece of information. That’s a clue that it’s probably important.

　　Don’t over do It:

　　9

　　If you focus too much on getting your notes right, you might miss important points. Some people actually learn better by listening, writing down a few key points, and then going over the material after class when they have more time.

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