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【单选题】
海水是一个巨大的化学资源库，下列有综合利用的说法正确的是A.
从海水中可得到NaCl，电解熔融NaCl或其水溶液都可制得Cl 2
B.
因海水中含有镁元素，故不需经过化学变化就可以得到镁单质
C.
利用蒸馏原理从海水中提取淡水是海水淡化技术发展的新方向
D.
无论是海水波浪发电还是潮汐发电，都是将化学能转化为电能
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【简答题】A. weak B. as C. difficult D. convincing E. missing F. surprise G. consumption H. prices I. conversely J. help K. foxed L. off ...
【单选题】When shopkeepers want to lure customers into buying a particular product, they typically offer it at a discount. According to a new study to be published in the Journal of Marketing, they are【C1】_____...
A.
playing
B.
missing
C.
working
D.
wasting
【简答题】城轨交通车辆的核心部分是 ,是列车的 。
【单选题】Typically, discount points should not be paid if the borrower will pay off the loan in ________ years or less.
A.
5
B.
10
C.
15
D.
20
【单选题】Discount stores typically fall into the ________ group with respect to margins and volume.
A.
low-volume, mixed-markup
B.
low-volume, low-markup
C.
high-volume, low-markup
D.
high-markup, lower-volume
【单选题】The income of travel agents is typically a combination of fees paid directly by the client and the__________ paid to them by the companies they work with
A.
cash
B.
discount
C.
deals
D.
commissions
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