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【简答题】
求下列函数的导数(其中f具有连续偏导数):z=f(xy,x 2 -y 2 ).
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A.
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B.
基金的风险取决I于基金资产的运作
C.
基金的非系统风险为零
D.
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A.
enjoy to watch
B.
enjoy watch
C.
enjoy watching
D.
enjoys watching
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【多选题】下列项目中,属于经营活动现金流量的有( )。
A.
支付的融资租赁费
B.
教育费附加返还
C.
支付给在建工程人员的工资
D.
支付给离退休人员的统筹退休金
E.
为生产工人支付的住房公积金
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【单选题】关于基金投资的风险,以下说法错误的是
A.
基金的风险是指购买基金遭受损失的可能性
B.
基金的风险取决于基金资产的运作
C.
基金的非系统性风险为零
D.
基金的资产运作无法消灭风险
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