题目

People are always trying to live a healthy life. You might have read so much on this topic. The following ideas may sound strange, but they can really help you.Exercise when you are tired.After a long and tiring day of study, exercising might not sound like a good idea, but it should. In fact, physical activities can provide you with the missing energy. Research shows that exercising for just 30 minutes can make you feel good!Write by hand to help the brain be active.Although writing something using a computer is faster, it is much better to remember the whole thing by writing it down by hand.小红1分钟写5个字，6分钟可以写（ ）个字A.16个B.20个C.30个