题目

It's important to teach children to create strong passwords（密码）.①So why not remind them that passwords mustn’t be shared with anyone?A strong password is a word that is as difficult as possible to guess because it looks like a set of random characters（随机的字符）.It's wise to use the whole keyboard to mix a password with letters, numbers and symbols. A password of 14 characters or more may be much safer.The following tips will tell you how to create a strong and safe password:Tip 1: ②Think of a sentence that is easy to remember, but difficult to guess. For example: My so图形中有 个角？