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【单选题】
在统计学中,参数的含义是
A.
变量
B.
参与研究的数目
C.
研究样本的统计指标
D.
总体的统计指标
E.
与统计研究有变量
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A.
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B.
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A.
产品众筹
B.
天使众筹
C.
股权众筹
D.
市场众筹
E.
资金众筹
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【单选题】按照给予投资者回报的类型,可将众筹分为奖励性众筹、( )、债权众筹和捐赠性众筹。
A.
股权众筹
B.
商务众筹
C.
股票众筹
D.
债务众筹
【多选题】众筹的三大构成 、 和 。
A.
众筹平台
B.
筹资人
C.
公众
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