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【判断题】
健身操舞分为 有氧健身操舞、时尚健身课程、广场健身操舞、街舞民族健身操舞 五大类A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】热泵系统性能系数COP
A.
COP<0< /div>
B.
0
C.
COP>1
D.
COP=1
【简答题】电液动换向阀是由( )和液动换向阀组成的复合阀。
【单选题】Soapy in "The Cop and the Anthem" was a tramp in New York who spent the night in Central Park.But he realized it was time to make arrangements for winter by ___________ for three months.
A.
working as a driver
B.
moving to Florida
C.
breaking law
D.
doing nothing
【单选题】Economists normally
A.
do not try to explain people's tastes, but they do try to explain what happens when tastes change.
B.
believe that they must be able to explain people's tastes in order to explain what happens when tastes change.
C.
do not believe that people's tastes determine demand, so they ignore the subject of tastes.
D.
incorporate tastes into economic models only to the extent that tastes determine whether pairs of goods are substitutes or complements.
【单选题】Economists normally assume that the goal of a firm is to
A.
maximize its total revenue.
B.
maximize its profit.
C.
minimize its explicit costs.
D.
minimize its total cost.
【简答题】电液换向阀是由()和()组成的复合阀
相关题目：
【单选题】热泵系统性能系数COP
A.
COP<0< /div>
B.
0
C.
COP>1
D.
COP=1