单选题:Which of the following is said to be the most expensive and

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题目内容:
Which of the following is said to be the most expensive and harmful? A.Consuming alcoho
B.Using heroi
C.Smoking cigarette
D.Taking cocain
参考答案:
答案解析:

若热水器的用电量单测,且烧水用每度电的花费是其它用电的0.5倍,那么烧水的花费占总的用电花费的几分之几?( )

若热水器的用电量单测,且烧水用每度电的花费是其它用电的0.5倍,那么烧水的花费占总的用电花费的几分之几?( )A.1/11 B.1/9 C.1/8 D.1/5

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假定在工程文件中有一个标准模块,其中定义了如下记录类型 TypeBooks  NameAsString*10  TelN

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Paragraph 3 ______________.

Paragraph 3 ______________.

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