题目内容
Nowadays, almost every householdhas different kinds of electrical _________ to relieve manual labor.
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He studied hard at school when he was young, ______ contributed to his success in later life.
You shouldn’t get angry just _________ some people speak ill of you.
The faster anything is thrown into the sky, _________ it goes.
By 2010, it is ____________ that computers will be able to perform at least 2 billionoperations per second.
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