• 2022-06-15 问题

    黄金分割比例是()。 A: 1:3.14 B: 1:0.618 C: 1:1.49 D: 1:1.214

    黄金分割比例是()。 A: 1:3.14 B: 1:0.618 C: 1:1.49 D: 1:1.214

  • 2022-06-05 问题

    设 [tex=4.143x1.214]x1uY6dGN7pA7WcW9hR8TLndfTyMcbr6QokNHmScTKGGzSARfYSMxXdryEoDv5+nV[/tex] 是完舍四点形的顶点, [tex=5.786x1.214]kBYOrS04kSjTuJ8ux0vA9b8eEhrFwq/aSQlR6Vxj256k0Wg3OSn50kd7EqWcPWX6[/tex] [tex=5.786x1.214]zMFxsikGo4OuhtOkb0wqScB9HKFaTdOAlPY8ELk+DkDYCVRD2Bx9iRSSq0Jdu2EB[/tex] [tex=5.786x1.214]tWM0fzt+8S6bmcrXUZsunaHymdV9uChbcyOUz1b6r7R2ja1VfSxpwXyGXIv+MAWR[/tex]证明: [tex=18.929x1.214]292YCH9QlXwtXoQer05+pwgmZM74wc2bjeLN1XkK1mFBD3vrPaZas79mvKpQLrqTLCk+UG7D9U8TKt81yPEAlBIf00VRWAQg0uTT3Airi1yhWTa6+bL3UDz+xvRDTfA38TYxzz0hJyjxgjtO5MqK+ZYkhqQejN2gQZrOubjbp62YDKoFB76/CuGs5R6lUiII[/tex] 三点共线。[img=193x216]1790de22d854653.png[/img]

    设 [tex=4.143x1.214]x1uY6dGN7pA7WcW9hR8TLndfTyMcbr6QokNHmScTKGGzSARfYSMxXdryEoDv5+nV[/tex] 是完舍四点形的顶点, [tex=5.786x1.214]kBYOrS04kSjTuJ8ux0vA9b8eEhrFwq/aSQlR6Vxj256k0Wg3OSn50kd7EqWcPWX6[/tex] [tex=5.786x1.214]zMFxsikGo4OuhtOkb0wqScB9HKFaTdOAlPY8ELk+DkDYCVRD2Bx9iRSSq0Jdu2EB[/tex] [tex=5.786x1.214]tWM0fzt+8S6bmcrXUZsunaHymdV9uChbcyOUz1b6r7R2ja1VfSxpwXyGXIv+MAWR[/tex]证明: [tex=18.929x1.214]292YCH9QlXwtXoQer05+pwgmZM74wc2bjeLN1XkK1mFBD3vrPaZas79mvKpQLrqTLCk+UG7D9U8TKt81yPEAlBIf00VRWAQg0uTT3Airi1yhWTa6+bL3UDz+xvRDTfA38TYxzz0hJyjxgjtO5MqK+ZYkhqQejN2gQZrOubjbp62YDKoFB76/CuGs5R6lUiII[/tex] 三点共线。[img=193x216]1790de22d854653.png[/img]

  • 2022-06-08 问题

    下列物质属于矾类的是 未知类型:{'options': ['[tex=5.786x1.214]z6/GEMuYxYgijeQ0k66jhZTWRmPr4Sj0Ffv8Wv7x5oQ=[/tex]', '[tex=6.071x1.214]MPX4YnA/SX5x8Mc9ab46qbLRSI0QVnQANVgiOZ8Ps50=[/tex]', '[tex=8.643x1.357]C7r3hXFd+yUMvQz0WKF3f4IoDKFt/VdyfIdpJ8tTH87WVKV1AaSZo7lEwd66kawy8egZ6rx6a/pv2iJ8qBqg0Q==[/tex]', '[tex=5.786x1.214]HC9A51x6XQEavQr5qArKR7+A1Vkd4MoMJeNPtKFlU3Y=[/tex]'], 'type': 102}

    下列物质属于矾类的是 未知类型:{'options': ['[tex=5.786x1.214]z6/GEMuYxYgijeQ0k66jhZTWRmPr4Sj0Ffv8Wv7x5oQ=[/tex]', '[tex=6.071x1.214]MPX4YnA/SX5x8Mc9ab46qbLRSI0QVnQANVgiOZ8Ps50=[/tex]', '[tex=8.643x1.357]C7r3hXFd+yUMvQz0WKF3f4IoDKFt/VdyfIdpJ8tTH87WVKV1AaSZo7lEwd66kawy8egZ6rx6a/pv2iJ8qBqg0Q==[/tex]', '[tex=5.786x1.214]HC9A51x6XQEavQr5qArKR7+A1Vkd4MoMJeNPtKFlU3Y=[/tex]'], 'type': 102}

  • 2022-06-09 问题

    设[tex=16.5x3.643]hB8sGfF8hpZRTKdvt1J/eDh1scoV8+c4fiB3fG1jUZ1dRa1v0PbJ6wRKcoAwuUU4ubBwjp6Z91y+tTdDSKYZBs5RIN/o8VnOuuhGikGhd6fqquBFadfAs0z6MuwfbNoinDzu8HpwS1Px0TQNhBQSV0uyeLuLDrf9AR0nBQI8IbtizPmwR+vG8qKMKEE2I9lycq+oMmLgArOJ/0yx2jPrH59gZMy3ngj6H3mm6g7hNo8=[/tex]计算[tex=5.786x1.214]YOw3PMOPUYM85yH8+QZ31Q==[/tex]

    设[tex=16.5x3.643]hB8sGfF8hpZRTKdvt1J/eDh1scoV8+c4fiB3fG1jUZ1dRa1v0PbJ6wRKcoAwuUU4ubBwjp6Z91y+tTdDSKYZBs5RIN/o8VnOuuhGikGhd6fqquBFadfAs0z6MuwfbNoinDzu8HpwS1Px0TQNhBQSV0uyeLuLDrf9AR0nBQI8IbtizPmwR+vG8qKMKEE2I9lycq+oMmLgArOJ/0yx2jPrH59gZMy3ngj6H3mm6g7hNo8=[/tex]计算[tex=5.786x1.214]YOw3PMOPUYM85yH8+QZ31Q==[/tex]

  • 2022-06-14 问题

    设[tex=16.5x3.643]hB8sGfF8hpZRTKdvt1J/eDh1scoV8+c4fiB3fG1jUZ1dRa1v0PbJ6wRKcoAwuUU4ubBwjp6Z91y+tTdDSKYZBs5RIN/o8VnOuuhGikGhd6fqquBFadfAs0z6MuwfbNoinDzu8HpwS1Px0TQNhBQSV0uyeLuLDrf9AR0nBQI8IbtizPmwR+vG8qKMKEE2I9lycq+oMmLgArOJ/0yx2jPrH59gZMy3ngj6H3mm6g7hNo8=[/tex]计算[tex=5.786x1.214]YOw3PMOPUYM85yH8+QZ31Q==[/tex]

    设[tex=16.5x3.643]hB8sGfF8hpZRTKdvt1J/eDh1scoV8+c4fiB3fG1jUZ1dRa1v0PbJ6wRKcoAwuUU4ubBwjp6Z91y+tTdDSKYZBs5RIN/o8VnOuuhGikGhd6fqquBFadfAs0z6MuwfbNoinDzu8HpwS1Px0TQNhBQSV0uyeLuLDrf9AR0nBQI8IbtizPmwR+vG8qKMKEE2I9lycq+oMmLgArOJ/0yx2jPrH59gZMy3ngj6H3mm6g7hNo8=[/tex]计算[tex=5.786x1.214]YOw3PMOPUYM85yH8+QZ31Q==[/tex]

  • 2022-06-08 问题

    设[tex=16.5x3.643]hB8sGfF8hpZRTKdvt1J/eDh1scoV8+c4fiB3fG1jUZ1dRa1v0PbJ6wRKcoAwuUU4ubBwjp6Z91y+tTdDSKYZBs5RIN/o8VnOuuhGikGhd6fqquBFadfAs0z6MuwfbNoinDzu8HpwS1Px0TQNhBQSV0uyeLuLDrf9AR0nBQI8IbtizPmwR+vG8qKMKEE2I9lycq+oMmLgArOJ/0yx2jPrH59gZMy3ngj6H3mm6g7hNo8=[/tex]计算[tex=5.786x1.214]YOw3PMOPUYM85yH8+QZ31Q==[/tex]

    设[tex=16.5x3.643]hB8sGfF8hpZRTKdvt1J/eDh1scoV8+c4fiB3fG1jUZ1dRa1v0PbJ6wRKcoAwuUU4ubBwjp6Z91y+tTdDSKYZBs5RIN/o8VnOuuhGikGhd6fqquBFadfAs0z6MuwfbNoinDzu8HpwS1Px0TQNhBQSV0uyeLuLDrf9AR0nBQI8IbtizPmwR+vG8qKMKEE2I9lycq+oMmLgArOJ/0yx2jPrH59gZMy3ngj6H3mm6g7hNo8=[/tex]计算[tex=5.786x1.214]YOw3PMOPUYM85yH8+QZ31Q==[/tex]

  • 2022-07-23 问题

    设[tex=16.5x3.643]hB8sGfF8hpZRTKdvt1J/eDh1scoV8+c4fiB3fG1jUZ1dRa1v0PbJ6wRKcoAwuUU4ubBwjp6Z91y+tTdDSKYZBs5RIN/o8VnOuuhGikGhd6fqquBFadfAs0z6MuwfbNoinDzu8HpwS1Px0TQNhBQSV0uyeLuLDrf9AR0nBQI8IbtizPmwR+vG8qKMKEE2I9lycq+oMmLgArOJ/0yx2jPrH59gZMy3ngj6H3mm6g7hNo8=[/tex]计算[tex=5.786x1.214]YOw3PMOPUYM85yH8+QZ31Q==[/tex]

    设[tex=16.5x3.643]hB8sGfF8hpZRTKdvt1J/eDh1scoV8+c4fiB3fG1jUZ1dRa1v0PbJ6wRKcoAwuUU4ubBwjp6Z91y+tTdDSKYZBs5RIN/o8VnOuuhGikGhd6fqquBFadfAs0z6MuwfbNoinDzu8HpwS1Px0TQNhBQSV0uyeLuLDrf9AR0nBQI8IbtizPmwR+vG8qKMKEE2I9lycq+oMmLgArOJ/0yx2jPrH59gZMy3ngj6H3mm6g7hNo8=[/tex]计算[tex=5.786x1.214]YOw3PMOPUYM85yH8+QZ31Q==[/tex]

  • 2022-06-07 问题

    WHO建议腰/臀比(WHR)男性、女性各是多少可诊断为中心性肥胖 未知类型:{'options': ['>0.95,>0.9', '[tex=5.786x1.214]Sse6Xak+Z1BmI4W0qU80ER69QqAeL0obuFsYc9cbKNs=[/tex]', '>0.9,>0.85', '[tex=5.786x1.214]7/7HzYQUCuXN5tpIS5gPXX5ikeu2tk4bh61VU3dYe2w=[/tex]', '>0.85,>0.8'], 'type': 102}

    WHO建议腰/臀比(WHR)男性、女性各是多少可诊断为中心性肥胖 未知类型:{'options': ['>0.95,>0.9', '[tex=5.786x1.214]Sse6Xak+Z1BmI4W0qU80ER69QqAeL0obuFsYc9cbKNs=[/tex]', '>0.9,>0.85', '[tex=5.786x1.214]7/7HzYQUCuXN5tpIS5gPXX5ikeu2tk4bh61VU3dYe2w=[/tex]', '>0.85,>0.8'], 'type': 102}

  • 2022-05-29 问题

    设[tex=17.357x3.643]sSXBpxJWudVpH1R35o4LnDnU17LSNLQamgLfHxHhgyyVnw/4+yI/rOgRFvVVIFRO05ngZwkGpsJuHdsaszk8yXQXS2h0TUqbPvjCzV+a0owmA1Y/+UJqgFQCoGpp57fmTSVPAi8Ce+nqlqBDToZqwEJGgR9ZpS1jZSx5AzSOYnwk1FKW3Hm/o3/NOBJ1bBIZKEFJA9Vq2TO880brQrHtyLZp3Hb9TXI66gpGcmDmeTI=[/tex]计算[tex=5.786x1.214]gNvIjRDWNhVJv7vKHCFXrQ==[/tex] .

    设[tex=17.357x3.643]sSXBpxJWudVpH1R35o4LnDnU17LSNLQamgLfHxHhgyyVnw/4+yI/rOgRFvVVIFRO05ngZwkGpsJuHdsaszk8yXQXS2h0TUqbPvjCzV+a0owmA1Y/+UJqgFQCoGpp57fmTSVPAi8Ce+nqlqBDToZqwEJGgR9ZpS1jZSx5AzSOYnwk1FKW3Hm/o3/NOBJ1bBIZKEFJA9Vq2TO880brQrHtyLZp3Hb9TXI66gpGcmDmeTI=[/tex]计算[tex=5.786x1.214]gNvIjRDWNhVJv7vKHCFXrQ==[/tex] .

  • 2022-05-29 问题

     若50ml [tex=5.786x1.214]Kqcc/RAccl6z59zUc1Yo9gtf+qjdNsbhjdMx8cAY6KC2amJBiKs6Kn6yT8gmNGnF[/tex]的某-元弱酸与40ml [tex=5.786x1.214]Kqcc/RAccl6z59zUc1Yo9gtf+qjdNsbhjdMx8cAY6KC2amJBiKs6Kn6yT8gmNGnF[/tex]NaOH溶液混合后,溶液的pH为5.35。则此酸的[tex=1.571x1.429]IZvoT7c+4DvdPyWw/2uqhAHjqGYPdO6lQ7SuolqYKcg=[/tex]值为?

     若50ml [tex=5.786x1.214]Kqcc/RAccl6z59zUc1Yo9gtf+qjdNsbhjdMx8cAY6KC2amJBiKs6Kn6yT8gmNGnF[/tex]的某-元弱酸与40ml [tex=5.786x1.214]Kqcc/RAccl6z59zUc1Yo9gtf+qjdNsbhjdMx8cAY6KC2amJBiKs6Kn6yT8gmNGnF[/tex]NaOH溶液混合后,溶液的pH为5.35。则此酸的[tex=1.571x1.429]IZvoT7c+4DvdPyWw/2uqhAHjqGYPdO6lQ7SuolqYKcg=[/tex]值为?

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