20xx春八年級英語下冊unit3onlinetours第1課時comicstripwelcometotheunit課件新版牛津版-展示頁
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【正文】 passwords are can you make your passwords safe?Experts have some tips for you. First,make your password out of capital letters( 大寫字母 ).It will be difficult for others to get into your account( 賬戶 ).It only takes a hacker( 黑客 ) ten minutes to work out a sixletter password made of small the same password in capital letters takes ten hours to work out. Second,add numbers or symbols( 符號 ) to your may be much such passwords are not easy to remember,but they are really safe. Third,never use personal information for passwords and use different passwords for different say that a user should change his passwords about every 90 that way,hackers won’t guess your passwords. ( B ) you set your password with six capital letters,a hacker may spend working it out. minutes hours day week ( D ) should change your passwords about . 10 days month two months three months ( A ) to the p
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