• 2021-04-14 问题

    某企业为推销某种产品在五个地区建立了销售点,统计四个时期的销售量资料如下表所示(单位:万): 时期 地点 6 2 4 4 8 10 7 11 9 12 13 9 7 8 7 2 1 2 2 3 试问该产品在不同地区和不同时期的销售情况是否存在显著的差异。/ananas/latex/p/2820/ananas/latex/p/3183/ananas/latex/p/6565/ananas/latex/p/171452/ananas/latex/p/155070/ananas/latex/p/1129/ananas/latex/p/1130/ananas/latex/p/13375/ananas/latex/p/13355

    某企业为推销某种产品在五个地区建立了销售点,统计四个时期的销售量资料如下表所示(单位:万): 时期 地点 6 2 4 4 8 10 7 11 9 12 13 9 7 8 7 2 1 2 2 3 试问该产品在不同地区和不同时期的销售情况是否存在显著的差异。/ananas/latex/p/2820/ananas/latex/p/3183/ananas/latex/p/6565/ananas/latex/p/171452/ananas/latex/p/155070/ananas/latex/p/1129/ananas/latex/p/1130/ananas/latex/p/13375/ananas/latex/p/13355

  • 2021-04-14 问题

    A:平面,B:球面,C:旋转椭球面,D:椭球面,E:圆柱面,F:抛物柱面,G:椭圆柱面,H:旋转抛物面,I:圆锥面,J:椭圆锥面,K:马鞍面。则: (1)是____; (2)是______; (3)是______; (4)是______; (5)是______; (6)是______; (7)是______; (8)是______; (9)是______; (10)是______; (11)是______; (12)是______; (13)是______;/ananas/latex/p/1045101/ananas/latex/p/28097/ananas/latex/p/958152/ananas/latex/p/39419/ananas/latex/p/973515/ananas/latex/p/47030/ananas/latex/p/645788/ananas/latex/p/36944/ananas/latex/p/34552/ananas/latex/p/422334/ananas/latex/p/1045357/ananas/latex/p/36098/ananas/latex/p/596597

    A:平面,B:球面,C:旋转椭球面,D:椭球面,E:圆柱面,F:抛物柱面,G:椭圆柱面,H:旋转抛物面,I:圆锥面,J:椭圆锥面,K:马鞍面。则: (1)是____; (2)是______; (3)是______; (4)是______; (5)是______; (6)是______; (7)是______; (8)是______; (9)是______; (10)是______; (11)是______; (12)是______; (13)是______;/ananas/latex/p/1045101/ananas/latex/p/28097/ananas/latex/p/958152/ananas/latex/p/39419/ananas/latex/p/973515/ananas/latex/p/47030/ananas/latex/p/645788/ananas/latex/p/36944/ananas/latex/p/34552/ananas/latex/p/422334/ananas/latex/p/1045357/ananas/latex/p/36098/ananas/latex/p/596597

  • 2021-04-14 问题

    已知R=6Ω,=15Ω,=7Ω,将它们串联时,总阻抗∣Z∣等于Ω。/ananas/latex/p/2039/ananas/latex/p/10473

    已知R=6Ω,=15Ω,=7Ω,将它们串联时,总阻抗∣Z∣等于Ω。/ananas/latex/p/2039/ananas/latex/p/10473

  • 2021-04-14 问题

    /ananas/latex/p/515893/ananas/latex/p/515894/ananas/latex/p/503271/ananas/latex/p/515901/ananas/latex/p/515902/ananas/latex/p/515907/ananas/latex/p/515908

    /ananas/latex/p/515893/ananas/latex/p/515894/ananas/latex/p/503271/ananas/latex/p/515901/ananas/latex/p/515902/ananas/latex/p/515907/ananas/latex/p/515908

  • 2021-04-14 问题

    已知()=0.4,则()=( )/ananas/latex/p/152/ananas/latex/p/278/ananas/latex/p/847/ananas/latex/p/281/ananas/latex/p/152/ananas/latex/p/4781/ananas/latex/p/7419/ananas/latex/p/6547

    已知()=0.4,则()=( )/ananas/latex/p/152/ananas/latex/p/278/ananas/latex/p/847/ananas/latex/p/281/ananas/latex/p/152/ananas/latex/p/4781/ananas/latex/p/7419/ananas/latex/p/6547

  • 2021-04-14 问题

    求不定积分 A B C D/ananas/latex/p/2345131/ananas/latex/p/2345151/ananas/latex/p/2345158/ananas/latex/p/2345165/ananas/latex/p/2345170

    求不定积分 A B C D/ananas/latex/p/2345131/ananas/latex/p/2345151/ananas/latex/p/2345158/ananas/latex/p/2345165/ananas/latex/p/2345170

  • 2021-04-14 问题

    ________,________,________,________. /ananas/latex/p/365732/ananas/latex/p/365733/ananas/latex/p/365734/ananas/latex/p/365735

    ________,________,________,________. /ananas/latex/p/365732/ananas/latex/p/365733/ananas/latex/p/365734/ananas/latex/p/365735

  • 2021-04-14 问题

    微分方程的通解是 A() B() C() D()/ananas/latex/p/246339/ananas/latex/p/1383985/ananas/latex/p/1384011/ananas/latex/p/1384021/ananas/latex/p/1383997

    微分方程的通解是 A() B() C() D()/ananas/latex/p/246339/ananas/latex/p/1383985/ananas/latex/p/1384011/ananas/latex/p/1384021/ananas/latex/p/1383997

  • 2021-04-14 问题

    微分方程 的通解为A. B . C. D ./ananas/latex/p/19860/ananas/latex/p/7563/ananas/latex/p/266655/ananas/latex/p/19864/ananas/latex/p/266659

    微分方程 的通解为A. B . C. D ./ananas/latex/p/19860/ananas/latex/p/7563/ananas/latex/p/266655/ananas/latex/p/19864/ananas/latex/p/266659

  • 2021-04-14 问题

    设,在D上可积,,则 , , .https://mooc1-1.chaoxing.com/ananas/latex/p/27236https://mooc1-1.chaoxing.com/ananas/latex/p/356004https://mooc1-1.chaoxing.com/ananas/latex/p/1153863https://mooc1-1.chaoxing.com/ananas/latex/p/1153883https://mooc1-1.chaoxing.com/ananas/latex/p/1153941https://mooc1-1.chaoxing.com/ananas/latex/p/1153969https://mooc1-1.chaoxing.com/ananas/latex/p/1153978

    设,在D上可积,,则 , , .https://mooc1-1.chaoxing.com/ananas/latex/p/27236https://mooc1-1.chaoxing.com/ananas/latex/p/356004https://mooc1-1.chaoxing.com/ananas/latex/p/1153863https://mooc1-1.chaoxing.com/ananas/latex/p/1153883https://mooc1-1.chaoxing.com/ananas/latex/p/1153941https://mooc1-1.chaoxing.com/ananas/latex/p/1153969https://mooc1-1.chaoxing.com/ananas/latex/p/1153978

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