自然数中，凡是17的倍数（ ） A．都是偶数 B．有偶数有奇数 C．都是奇数

阅读短文，根据短文内容，从短文后的五个选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。（共8分，每小题2分）
Note-taking is a skill that can help you do well in all your schoolwork. It can make you confident when you are studying.    1   .
If your teacher writes notes on the blackboard, that’s great. You can copy them or write down the most important facts of all in class. Different teachers do things differently. For example, some teachers may focus on(关注) lots of dates and facts in class, but they only write the important ones on the blackboard.   2   , but they may repeat them.
Don’t try to write down every word in class, or you might miss some important points. Some students really learn better with the help of these notes.
Don’t be afraid to ask your teacher to repeat what you’re missed. If your teacher speaks too fast and you can’t follow what he is saying, you can ask him after class.
Comparing (对比) your notes with your classmates’ can be good for your learning.   3   .
Note-taking also needs organization. Keep notes for each subject in one place, so that you can find everything easily when a test comes.
   4  . If you decide to recopy your notes every evening, you’ll surely have less time to watch TV. But you’ll save time in the coming test.

A.It can also help you and your classmates correct some mistakes B. It isn’t interesting but you may find it very useful. C. However, most students don’t know how to take notes. D. Good note-taking takes time. E. Other teachers may not write anything down