单项选择题A.It is as important as that from books.B.It is less important than that from books.C.It is more important than that from books.D.It is too limited.
单项选择题A.Because schoolchildren waste time and money on them.B.Because too many adults spend working hours playing them.C.Because they can easily be turned into a form of gambling.D.Because they are becoming a social problem, affecting both adults and children.