According to the author, the bulletin board is as safe as e-mail.
举一反三
- The bulletin board has become the children’s favorite, on which they often display their creative drawings.
- Publicizing an open job to employees through a firm's intranet or bulletin board is known as job posting.
- 中国大学MOOC: Parents should tell their children that anything that is posted in chat room or on a bulletin board is there for everyone to see.
- The notice ______ on the bulletin board outside the building explains the timetable for the repair work. A: posts B: posted C: posting D: to post
- According to the author, ____.