设 [tex=5.786x1.429]k5weWvhPtr/rc567JmOhZfJgMRmKCsDI7a4PGBv+CqGGa0vN7SRnaQjqJTDlgOC7[/tex] 则 [tex=2.643x1.357]yFaPnH15i/KgCyuaiQF2Qw==[/tex][input=type:blank,size:4][/input].
未知类型:{'options': ['[tex=4.571x1.143]tayLBvB4J4pqT4xVfPSv/A==[/tex]', '[tex=3.857x1.143]8rLNYYJzm688fVqJS1ZBNg==[/tex]', '[tex=4.429x2.5]jqTQEQCXXYG/V9Xa1UPOGx1n5HvMlfx/j1pkftdBSkk=[/tex]', '[tex=5.0x1.143]9XX5Y1D0X6FOdMiU4TuB9Q==[/tex]'], 'type': 102}
未知类型:{'options': ['[tex=4.571x1.143]tayLBvB4J4pqT4xVfPSv/A==[/tex]', '[tex=3.857x1.143]8rLNYYJzm688fVqJS1ZBNg==[/tex]', '[tex=4.429x2.5]jqTQEQCXXYG/V9Xa1UPOGx1n5HvMlfx/j1pkftdBSkk=[/tex]', '[tex=5.0x1.143]9XX5Y1D0X6FOdMiU4TuB9Q==[/tex]'], 'type': 102}
举一反三
- 下列方程中是一阶微分方程的是[input=type:blank,size:4][/input]. 未知类型:{'options': ['[tex=8.0x1.571]SnLzj4UlSfnGqNtEzxfZSuZwslGsWxsvP2Y+yf7H578Vefe1Ol/nJT135DjkdnSNNikL3arAj80BjvPHaHCDiA==[/tex]', '[tex=10.571x1.571]JR4yrHJRIZfJXwhFSObwrfajFnWUvXzM/YiA3M6aDKuVBZ8I+7v5iXTXdA3E6Rm4vOE2BCfPwFP2rmRygXKEUDk1qLsNDCJ2p8GEbfCSr2s=[/tex]', '[tex=5.643x1.357]m0sKckxx+jZ9iltApBtB23TBISIOx/g0judcsS+akNFZrUNCq3g+BIVQwGbQEh/C[/tex]', '$y^{(4)}+5 y^{\\prime}-\\cos x=0$'], 'type': 102}
- 设随机变量 [tex=0.929x1.286]uswT/CEcOIwMpCvTz/zeaA==[/tex] 服从参数 [tex=3.143x1.286]+YbFeYrJMNsGfJf0KraF7SPelDX5xgqsp9CtXCLBwA8=[/tex] 的指数分布,则 E(X)= [input=type:blank,size:4][/input], D(X) =[input=type:blank,size:4][/input].
- 设 [tex=4.214x1.429]uZr1yNnKwT3+jwz26iy7tGgBGYCcmEBit9XynfDEjB8=[/tex] 则 [tex=2.643x1.5]d+IhwvI7U/AhlBCzEJR6Eg==[/tex][input=type:blank,size:4][/input]. 未知类型:{'options': ['0', '1', '[tex=1.214x1.214]VQMweMQEnI3dkGu+9zT8PA==[/tex]', '[tex=0.5x0.786]2Y/IM5ut7TLSzO+phHmBTA==[/tex]'], 'type': 102}
- 若 [tex=8.929x2.643]5bjO3K9llHu78PekZOUx1FFGjLQMmwN6XU4VIB6fhPVpZzxl46RZkdz5UAgu5Vl9XDpzldqaD+MO95m18x9rIA==[/tex] 则 [tex=2.643x1.357]yFaPnH15i/KgCyuaiQF2Qw==[/tex][input=type:blank,size:4][/input] 未知类型:{'options': ['[tex=2.357x1.214]gM6nADyqQ5sflgypiMRtx79cdTE8XjEP51qYpqmb8gM=[/tex]', '[tex=2.357x1.214]qpveRt/EPqNWVfYZAzJhMA==[/tex]', '[tex=2.714x1.214]XLoo8f7LYrmDd9NIjQqatHVeEuvjxxD+WYp8B9bU3BM=[/tex]', '[tex=4.786x1.5]gM6nADyqQ5sflgypiMRtx/VAZfUYFJZ2US7nRsJWmpA=[/tex]'], 'type': 102}
- 设随机变量X服从[tex=1.929x1.286]HmmJCe8jMYQ7Qi5trX1Z2w==[/tex]上的均匀分布,[tex=5.071x1.286]HnGQba3HT3pL1+jP5xuvNg==[/tex],则[tex=3.429x1.286]L9cosNMXc0MsOViIFfI1Kw==[/tex][input=type:blank,size:4][/input]。