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The first, price theory or microeconomics, explains how the interplay of supply and demand in competitive markets creates a multitude of individual prices, wage rates, profit margins, and rental changes.

题目

The first, price theory or microeconomics, explains how the interplay of supply and demand in competitive markets creates a multitude of individual prices, wage rates, profit margins, and rental changes.


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  • 第1题:

    以下哪种变量赋值的写法是不正确的()

    A.orange_price=6

    B.Price=5.8

    C.price=5.8

    D.01price=6


    参考答案:D

  • 第2题:

    In case of inconsistency between this bill of lading and the applicable tariff,this bill of lading shall ______.

    A.prevail

    B.provide

    C.apply

    D.supply


    正确答案:A

  • 第3题:

    BookStore数据库中有图书表Book(BookCode, BookName, Author, PublisherCode, PublishTime,BookSort, ISBN, BookPicture, ContentInro, Price, Discount),其中 PublishTime是datetime类型。 将Book表中的所有“外语”类图书的价格降低10%,并将折扣均设为8折。SQL语句: UPDATE Book SET ________ Where BookSort ='外语'。

    A.Price=Price*0.9, Discount=0.8

    B.Price=Price*(1-10%), Discount=0.8

    C.Price=0.9, Discount=0.8

    D.Discount=0.8, Price=Price*0.9


    Price=Price*0.9,Discount=0.8;Price=Price*(1-10%),Discount=0.8;Discount=0.8,Price=Price*0.9

  • 第4题:

    【C4】

    A.exposes

    B.exemplifies

    C.expresses

    D.explains


    正确答案:D
    各选项的意思是:expose使暴露,受到;exemplify例证,例示;express表达,表示;explain解释,说明。这句话是说,男人与女人的区别解释了一个自相矛盾的现象:沉默的妻子被多话的男人看成健谈的人。所以,应选择D。

  • 第5题:

    价格;条款;花费(  )。
    A.price;spend;terms
    B.price;spend;terms
    C.price;terms;spend
    D.terms;price;spend


    答案:C
    解析:

  • 第6题:

    7、BookStore数据库中有图书表Book(BookCode, BookName, Author, PublisherCode, PublishTime,BookSort, ISBN, BookPicture, ContentInro, Price, Discount),其中 PublishTime是datetime类型。 将Book表中的所有“外语”类图书的价格降低10%,并将折扣均设为8折。SQL语句: UPDATE Book SET ________ Where BookSort ='外语'。

    A.Price=Price*0.9, Discount=0.8

    B.Price=Price*(1-10%), Discount=0.8

    C.Price=0.9, Discount=0.8

    D.Discount=0.8, Price=Price*0.9


    DISTINCT