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【判断题】
喷油器的工作电压有5V和12V两种A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】The sales of a particular company in a market, expressed as a percentage of the total sales is called ____ .
A.
market price
B.
market share
C.
market value
D.
market cap
【简答题】商品的两个基本属性是 和 。
【单选题】Total producer surplus in a market is equal to the .
A.
selling price times the number of units sold
B.
area underneath the demand curve to the number of units sold
C.
area between the demand curve and the market supply curve
D.
area between the market price and the market supply curve
【单选题】The sales of a particular company in a market, expressed as a percentage of the total sales is called .
A.
market value
B.
market share
C.
market price
D.
market cap
【单选题】根据《中华人民共和国注册建筑师条例》，下列哪一项不属于注册建筑师应当履行的义务(2005，66)
A.
保守在执业中知悉的个人秘密
B.
向社会普及建筑文化知识
C.
维护社会公共利益
D.
遵守法律
【简答题】商品的基本属性是:A. 交换价值; B. 有用性; C. 价值; D. 使用价值;
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