已知[tex=5.286x1.357]Hfi9fqZ0S9tyxnNprETOZQ==[/tex],[tex=5.214x1.357]1ZKzFIyAGx3itb2qtVH69g==[/tex],[tex=5.214x1.357]B5E5Uls4epYDxUN96wdVcQ==[/tex], 求①[tex=2.214x1.143]0r4yD2FUhMBrZI0Ja3cQ+A==[/tex] 和 [tex=2.214x1.143]dBailWBF5fnw0+lpWlSW3w==[/tex];②[tex=9.214x1.357]kQnZGvmTpsjZ9mRdULW8Yk0BsEA7Heb4GEm7ZlExkhM=[/tex];③[tex=4.143x1.357]dzMrctjTxsEWbo0LPplRLNheTPWmf0bwJTTOAtM2vAg=[/tex]和[tex=4.143x1.357]uiZj/NtXcQzZ1YhLcYPC+VKQmf4krR6xum5ZCaZcV/o=[/tex];④[tex=4.643x1.357]mYudu4hCS+Lfb4CA1kmzuk0JsvuG1VzazALUYw0OIQ8=[/tex] 和 [tex=4.643x1.357]3m2flxkekJDyckbVXNlJ4N5uAlz/6TXVcZzU2ZyOZY0=[/tex].
举一反三
- 判断下列命题是否为真:(1)[tex=3.643x1.357]/5abqJjwKZ1qr+6hsVFF5EBvfq3ggOFNlHMClz0h9nk=[/tex](2)[tex=2.929x1.357]rGJpyjIjJpbcoBTWxP0Jiw==[/tex](3)[tex=4.5x1.357]2wycHMoqU83MyEp17iBils58bR7YLuCTI2G9NVAdlfY=[/tex](4)[tex=5.214x1.357]CTz2gu+IIm1GgNmYMGaduCRtA41wnW4WqwRWwEhq6aA=[/tex](5)[tex=4.857x1.357]1DcE2BMMOaZhTuxR/mjgsboXxfg5ET59Dp4I/jjEDuw=[/tex](6)[tex=4.643x1.357]BSryrsQYOvTP2hTWRu6t4nAuJwlSs4L9jaq70EpB+Us=[/tex](7)若[tex=6.0x1.357]y0IZLUnBO88nR8WBZYvd7QXv5S1OMINV5cQNzPyiyAc=[/tex],则[tex=3.429x1.357]1brfPwTkVVIX4GfoMIUskA==[/tex](8)若[tex=7.643x1.357]MhLfJXZnhbXiB0x3oNtFzThV4Y1mJxe1VYr7PkJE/T6hmTD3WWp+UxbNwvUQ6DHk[/tex],则[tex=4.143x1.357]LZUA94ISo1po5HWsOVeBCjo0rMvj7uw3bGw5HiZenrI=[/tex]
- [tex=2.214x1.0]Z8GWW72u+MH/mjafnp+83A==[/tex]丙酮酸经过丙酮酸脱氢酶系和柠檬酸循环产生[tex=4.0x1.214]EPDWVFNjIR8daNoozaWRDg==[/tex],生成的[tex=3.214x1.0]1AqDCKqjaAug6buHS5Z0tQ==[/tex]、[tex=3.429x1.214]HYAn2+I9AZQLWcA3ajoPaw==[/tex]和[tex=2.143x1.0]qQANfGnLx7pE5mcaEibuNg==[/tex](或[tex=2.071x1.0]YGdeb/NAM7yg+XY6SY16Fg==[/tex])的摩尔比是( )。 未知类型:{'options': ['3:2:0', '4:2:1', '4:1:1', '3:1:1', '2: 2:2'], 'type': 102}
- 已知[tex=2.357x1.286]t1pHPvJ7AlZl1FT6fv2UoA==[/tex],[tex=2.214x1.286]IkMTOy7a0RX/mqFNEPpSkw==[/tex],[tex=4.357x1.286]k4yp4oUNLNvCew5oq6PFug==[/tex],则[tex=9.286x1.286]QgeV3P3rP/xG0pN2mA4MvlsNj3Ico+I9Fs4XYsFOmk6+0cNQEh2/SlGOiUKxeQdT[/tex]的最大值是 A: 4 B: 2 C: 0 D: - 2 E: 1
- 设二维离散随机变量[tex=2.5x1.357]PWg5V4GQQafckGNgbx6gmw==[/tex]的可能值为(0, 0),(−1, 1),(−1, 2),(1, 0),且取这些值的概率依次为1/6, 1/3, 1/12, 5/12,试求[tex=0.857x1.0]N7iCrOsS+NNEUUlnsYCi1g==[/tex]与[tex=0.643x1.0]O+viFNA0oHTwnBtQyi80Zw==[/tex] 各自的边际分布列.
- 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 。