题型：阅读表达 题类：真题 难易度：普通
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: Think of a sentence that is easy to remember, but difficult to guess. For example: “ My son Peter is five years old and my daughter Tina is one year old.”The whole sentence is so long that it can't be a password, so what you can do is to use the first letter of each word to make a new password that seems to be meaningless. That is “mspifyoamdtioyo”.
Tip 2: Make the password more difficult to guess by mixing big and small letters. One way to do this is to use big and small letters one after another. In this way this new password will be “MsPiFyOaMdTiOyO”.
Tip 3: Still using the sentence above, you can also add numers that are meaningful to you. As a result, the new password will be “Mspi5yOaMdTi1yO”.
Tip 4: Add punctuation（标点符号）and symbols to make the password much stronger. You may use symbols, numbers and punctuation to replace some letters which look similar. For example: “MsPi3y0@MdTi!y0”.(o=0, a=@, 1=!)
任务型阅读。根据材料内容，按要求完成下列各题。
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