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【简答题】
碘量法中使用的指示剂是 ________,高锰酸钾法中采用的指示剂一般是________。
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举一反三
【简答题】阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。 An annual report provides {A. usefulB、B. uselessB、C. usefulness} information about an organization. People read annual reports in different ways. Some even {A. ...
【单选题】It’s said that the Kitchen God gives an annual report to the Jade Emperor of heaven on December 23rd (lunar calendar), which is about what each family did for the whole year. Traditionally, Chinese pe...
A.
People are becoming lazy.
B.
With more and more people building modern houses and moving to the cities, there are few people have kitchen stoves now.
【简答题】一般情况下，自然保护区是以( )建立的。
【简答题】金融衍生工具的主要功能有哪些？
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