【简答题】七选五 Do you constantly use the computer, whether for learning or entertainment? Computers give off radiation that is bad for your health, but here are some ways to protect yourself from computer radiat...
【简答题】A.It is also useful to get rid of a bad mood. B.It is too hard to do good to people's health. C.It may boost the heart rate. D.It is hardly effective in altering mood.