题目内容
形成商品价值的抽象劳动的特点是：
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商品价格变动的主要因素是：
劳动生产率的两种表示方法是
一定时期内流通过程中所需要的货币量是：
College professors are often believed to lead easy lives of quiet thinking while teaching one or two classes every week. But college professors do much more than go to class. The 1._____ professor spends between six and fifteen hours in the classroom 2_____. And that same college professor works from sixty to eighty hours a week.Because they must remain 3_____ in their fields, professors spend part of that time reading, reading, reading. That leads to 4_____ hours during which they revise and 5_____ their class lecture notes. It takes far longer to prepare notes than to deliver them in class. Professors may spend time 6_____ experiments, working on college projects, or 7_____ students. They may be writing books, articles, or papers for delivery at 8_____.When not in the classroom or in the office, professors are still working, behind closed doors in committee 9_____ or at home grading papers and preparing for tomorrow’s classes. To accept this sort of schedule willingly, they must feel strongly about the 10_____ of the college experience.[音频]
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