What are the important benefits of scanning? A.It can help you to research in a purposeful way. B.It can also double your reading speed. C.Scanning can cut your learning time in half. D.It can help you become a more flexible reader.

What are the important benefits of scanning? A.It can help you to research in a purposeful way. B.It can also double your reading speed. C.Scanning can cut your learning time in half. D.It can help you become a more flexible reader.

正确答案：ABCD