某手机商从刚刚卖出去的一部手机中赚到了10%的利润,但如果他用比原来进价低10%的价钱买进,而以赚20%利润的价格卖出,那么他就少卖25元。请问这部手机卖了多少钱?()
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由比利时政府授权修建的全球首座温室气体零排放极地考察站2009年2月15日在南极落成,这座考察站依靠风能和太阳能运转,力求实现对环境的影响最小化,它的名字是()。
听力原文:W: Yes, sir. What's more would you like to order?
M: I like to have another two cups of coffee and some ice water.
Where did the conversation take place?
At a booking office.
B. At a cafeteria.
C. In a business center.