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【单选题】
—Do you often ______ your penfriend? —Not very often. [ ]A.
hear from
B.
hear about
C.
hear of
D.
hear
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举一反三
【单选题】听力原文：M: Hello, I'd like to buy 2, 500 shares of MFST. What's the market? W: Let me check it for you. Just a moment, please. NYSE is presently 32. 65 bid, 32. 72 asked, last trade at 32. 68 up a nickel...
A.
In a supermarket
B.
In a bank
C.
At a stock exchange
D.
At a trade fair
【简答题】A．Watch a ball on TV. B．Take part in a basketball final. C．Ask his neighbor to check the power. D．Not use any electric appliances any more.
【简答题】硬盘按接口可分为( )硬盘和( )硬盘。
【简答题】一般以全年平均供电时间占全年时间的百分数来衡量供电的（）。
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