利用含有[tex=1.643x1.143]mdBK+uggx8XvztDY+MNW8Q==[/tex]和[tex=1.643x1.143]OkthkH83/ShoMSiDuB9kjYeKv1YcLd2+xkwHJEMrQ7M=[/tex]的混合溶液,逐滴滴人[tex=3.143x1.214]1tv2zYMMkwd/WJweMjoowA==[/tex]溶液,制备[tex=2.286x1.214]BXEYOXrbnsEpZk1JihM/hQ==[/tex]和[tex=2.286x1.214]SKGRaheu4CF4IyVCqu6lj8ar/QpFEKbUnom0/C1kB64=[/tex]时,所配制的混合溶液中[tex=5.214x1.5]ncedvLsWfRhgXMaMRf7FZ83HrSUQeX8dZ/fiIGH0t9YVI8qKFKcpfM88v90/y+NlhmsfnnVe9DiHFEOFdsMtZw==[/tex]的比值应满足什么条件,可以分别实现:(1)[tex=2.286x1.214]BXEYOXrbnsEpZk1JihM/hQ==[/tex]与[tex=2.286x1.214]SKGRaheu4CF4IyVCqu6lj8ar/QpFEKbUnom0/C1kB64=[/tex]同时沉淀;(2) [tex=2.286x1.214]BXEYOXrbnsEpZk1JihM/hQ==[/tex]先沉淀;(3)[tex=2.286x1.214]SKGRaheu4CF4IyVCqu6lj8ar/QpFEKbUnom0/C1kB64=[/tex]先沉淀。(已知[tex=19.929x1.643]m0TJlkLI7MfpcjZZVvjeSMi6lq/A5g2jdOUCm3IWXs1QQ5nY5bK1bjEwDBvAbWN95xpdx+hz3w39KV9SaPUDfOEkaZOPE6mxPMrIFHXKMzqYmSefCz7ZTPSpHwy7EhUjzOQcJkbd9QlNmfFdFZqsYQ==[/tex])
举一反三
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 6个顶点11条边的所有非同构的连通的简单非平面图有[tex=2.143x2.429]iP+B62/T05A6ZTM0eeaWiQ==[/tex]个,其中有[tex=2.143x2.429]ndZSw3zT0QTOVLVdoUto1Q==[/tex]个含子图[tex=1.786x1.286]J+vVZa2YaMpc6mJBbqVvWw==[/tex],有[tex=2.143x2.429]lmhx48evnQMhi03NovPXig==[/tex]个含与[tex=1.214x1.214]kFXZ1uR8GjycbJx+Ts2kyQ==[/tex]同胚的子图。供选择的答案[tex=3.071x1.214]3KinXFh3SXhZ7nIe1y9KEV6aadxhhJWeEy6Dij1iObdMUZkY6ZA5J2dVVjPSuhEf[/tex]:(1) 1 ;(2) 2 ;(3) 3 ; (4) 4 ;(5) 5 ;(6) 6 ; (7) 7 ; (8) 8 。
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']
- 对 [tex=0.643x0.786]/he/ol8BkDuTTL9yMPtH4Q==[/tex]的不同值,分别求出循环群[tex=1.143x1.214]StMMJ6qThnpokZJIPGrdFyP3vrLnUdltYxmLxjw8za8=[/tex]的所有生成元和所有子群。(1) 7; (2) 8; (3)10 ;(4) 14 ; (5) 15 (6) 18 。
- 混合溶液中[tex=4.214x1.214]+VHu7U7p5OyZH6N9ztyP1Q==[/tex]和[tex=3.5x1.214]K85aKCfyGtUIwh4kQOLHfPYwYdB/knoz96OzpKL72Rw=[/tex]浓度均为[tex=6.571x1.214]zGlt9iFbM1ZHCMl6Y1xUIMBfUUflLPVJ4sgnQSGIO7k=[/tex]向溶液中逐滴加人[tex=6.5x1.214]rSmB/Y+yav8YJ4Sus5KDnRTkVPj2FoHCic6klBiA9oc=[/tex]的[tex=3.143x1.214]7/74oP7ZHh1PPGFMLjZZUQ==[/tex]溶液时,最先和最后沉淀的是 [tex=21.214x1.643]g3tvVYl63XWsLPWfZ/TsFIJwd8gfNHsxthPv62gNK8F7vRAUUho5W3YRTOqTf7avi2ydt8HF/4pGW16lGtwMAY4DjuscrzwAuT95/9eZA2iLw9Kob3O20lqKEQE9iFN92DcBVM7iW1s4Kf1CWg4x9Q==[/tex][tex=12.286x1.643]kqAgIBlr2oGvobDlolvRHeprnTlQ6sDrOPLkP0brGA6ljBoiPRyubnXrIYTEa/vxvabgv+wG2V3YEX4nShzTCndx/ANM2w6ehYJ8UhSPigiqfe4+S5h2h7wWaiSG0ZA4[/tex] 未知类型:{'options': ['[tex=2.286x1.214]nceVOTib4Cm3L+Sf69HTuQ==[/tex],[tex=2.286x1.214]6INwYJRD7QExaMkQ2l6Ytg==[/tex]', '[tex=2.286x1.214]nceVOTib4Cm3L+Sf69HTuQ==[/tex],[tex=3.857x1.214]q6Eu++DQ6vPOMIhrSf5w+AdCMSnnSffxmMRMAEp8E4k=[/tex]', '[tex=3.857x1.214]DHWCHRoipD2GcuABlRml6YB5VvKrORb8C6NQFZSgd9Y=[/tex],[tex=2.286x1.214]6INwYJRD7QExaMkQ2l6Ytg==[/tex]', '同时沉淀'], 'type': 102}