What is spam? Spam is _____ email.
What is spam? Spam is _____ email.
执行以下代码的结果是：spam = 'hello' spam + 'world' print(spam)
执行以下代码的结果是：spam = 'hello' spam + 'world' print(spam)
有以下代码L = ('spam', 'Spam', 'SPAM!')下面那项是不正确的 A: L[2] 'SPAM!' 读取第三个元素 B: L[-2] 'Spam' 反向读取,读取倒数第二个元素 C: L[1:] ('Spam', 'SPAM!') 截取后2个元素 D: L[0:1] ('Spam', ') 截取中间的第2个元素
有以下代码L = ('spam', 'Spam', 'SPAM!')下面那项是不正确的 A: L[2] 'SPAM!' 读取第三个元素 B: L[-2] 'Spam' 反向读取,读取倒数第二个元素 C: L[1:] ('Spam', 'SPAM!') 截取后2个元素 D: L[0:1] ('Spam', ') 截取中间的第2个元素
A more effective approach to controlling spam ha been the development and use of spam blockers, also known as ________. A: spam B: spam filters C: antivirus D: e-mail system
A more effective approach to controlling spam ha been the development and use of spam blockers, also known as ________. A: spam B: spam filters C: antivirus D: e-mail system
________ use a variety of different ways to identify and eliminate spam.
________ use a variety of different ways to identify and eliminate spam.
Automated filters can catch all kinds of spam.
Automated filters can catch all kinds of spam.
Software does not help email users to defend spam.
Software does not help email users to defend spam.
spam
spam
spam='he ll o world 'he='or'he in spam 输出True
spam='he ll o world 'he='or'he in spam 输出True
以下程序执行后的结果是：spam=40 spam=spam+2 print(spam) A: 42 B: 40 C: error D: 2
以下程序执行后的结果是：spam=40 spam=spam+2 print(spam) A: 42 B: 40 C: error D: 2