What you want to ask is why it is not easy to download. ! School databases are all paid, and no account password is needed. You just need to log on to the network to download it. /This is for logging on to the Internet. Every student has an account. It seems to send 100 megabytes of traffic every month, but there is no arrears or the login will be locked. The specific account password and recharge can be announced in the computer room on the fourth floor of the library, and teachers can no longer be asked.