平坡和逆坡渠道中,断面单位能量沿程的变化: 未知类型:{'options': ['[tex=3.071x2.429]/6BtR58R05LBo15ksh2MLXlMFMhnzvl1P8Ie+0828ys=[/tex]', '[tex=3.071x2.429]/6BtR58R05LBo15ksh2MLUFNRBU5YuWltkRPpRnTq3M=[/tex]', '[tex=2.714x2.429]/6BtR58R05LBo15ksh2MLSTKp/xG6Mne9oPQWuh3t5g=[/tex]', '都有可能'], 'type': 102}
平坡和逆坡渠道中,断面单位能量沿程的变化: 未知类型:{'options': ['[tex=3.071x2.429]/6BtR58R05LBo15ksh2MLXlMFMhnzvl1P8Ie+0828ys=[/tex]', '[tex=3.071x2.429]/6BtR58R05LBo15ksh2MLUFNRBU5YuWltkRPpRnTq3M=[/tex]', '[tex=2.714x2.429]/6BtR58R05LBo15ksh2MLSTKp/xG6Mne9oPQWuh3t5g=[/tex]', '都有可能'], 'type': 102}
考察函数[tex=3.071x2.429]ftjKUKqArGhcMEOG3HTbBKKjP0xTv9JQwu9vI+UNuvw=[/tex]的孤立奇点,并确定它们的类别(可去奇点、几阶极点、本性奇点);
考察函数[tex=3.071x2.429]ftjKUKqArGhcMEOG3HTbBKKjP0xTv9JQwu9vI+UNuvw=[/tex]的孤立奇点,并确定它们的类别(可去奇点、几阶极点、本性奇点);
设[tex=3.143x1.357]+E+EcJyneTJKRl0PxOQvtg==[/tex]由下列参数方程给出,求[tex=3.071x2.429]31PbzzoO51ef2IPQAkMTXSlI65PEDfJ0Nfdzp58ahyGIGeQmzpFPG3M18MjO3Img[/tex]:[tex=5.0x2.929]GE56u9QCDTqcLxZ66HADyj+t5UcoPw0G9VK2k/MRSomh2/9hgWhVNMyt0FpGT1L795yfd/y6/SzFIx5aRBffRGVPc30y9m5+YdhxfRKz2hI=[/tex].
设[tex=3.143x1.357]+E+EcJyneTJKRl0PxOQvtg==[/tex]由下列参数方程给出,求[tex=3.071x2.429]31PbzzoO51ef2IPQAkMTXSlI65PEDfJ0Nfdzp58ahyGIGeQmzpFPG3M18MjO3Img[/tex]:[tex=5.0x2.929]GE56u9QCDTqcLxZ66HADyj+t5UcoPw0G9VK2k/MRSomh2/9hgWhVNMyt0FpGT1L795yfd/y6/SzFIx5aRBffRGVPc30y9m5+YdhxfRKz2hI=[/tex].
矩形断面渠道的均匀流,若断面单位能量与水深之比[tex=3.071x2.429]lxlEDSRzYl+p7s0+JnUvfVGLrncNXWEar5lkZfOQDlo=[/tex]则水流为( )。 A: 急流 B: 缓流 C: 临界流 D: 急变流
矩形断面渠道的均匀流,若断面单位能量与水深之比[tex=3.071x2.429]lxlEDSRzYl+p7s0+JnUvfVGLrncNXWEar5lkZfOQDlo=[/tex]则水流为( )。 A: 急流 B: 缓流 C: 临界流 D: 急变流
下列极限存在的是 未知类型:{'options': ['[tex=5.429x2.5]ENxIatiC2yqgaopSQCG83mnuGMqJb0xELb37sIo0Z2pvaMcfXQmQb4gfsJ9Jt0X2FzMhe0EheYzvECmPZ7Yf5w==[/tex]', '[tex=4.071x2.429]ENxIatiC2yqgaopSQCG83o6+oJRvD5QCnaUESzTMPB1ZpX+/aEHzwo5akb4x8Fq1[/tex]', '[tex=6.071x2.786]ENxIatiC2yqgaopSQCG83jfDTyyYEXSi2WH/phGcwgvQXCfLF+n4rHWD1IIw8cSbAn+uPBCuBT7NSkH0wGQRxw==[/tex]', '[tex=3.071x2.429]ENxIatiC2yqgaopSQCG83voPQUyjx/mPfRkFwsrnXIH+sGraGzWrv+xuwlkFzfwg58Bd7MKlA0Zz7YAs+WxmkQ==[/tex]'], 'type': 102}
下列极限存在的是 未知类型:{'options': ['[tex=5.429x2.5]ENxIatiC2yqgaopSQCG83mnuGMqJb0xELb37sIo0Z2pvaMcfXQmQb4gfsJ9Jt0X2FzMhe0EheYzvECmPZ7Yf5w==[/tex]', '[tex=4.071x2.429]ENxIatiC2yqgaopSQCG83o6+oJRvD5QCnaUESzTMPB1ZpX+/aEHzwo5akb4x8Fq1[/tex]', '[tex=6.071x2.786]ENxIatiC2yqgaopSQCG83jfDTyyYEXSi2WH/phGcwgvQXCfLF+n4rHWD1IIw8cSbAn+uPBCuBT7NSkH0wGQRxw==[/tex]', '[tex=3.071x2.429]ENxIatiC2yqgaopSQCG83voPQUyjx/mPfRkFwsrnXIH+sGraGzWrv+xuwlkFzfwg58Bd7MKlA0Zz7YAs+WxmkQ==[/tex]'], 'type': 102}
设[tex=3.571x1.286]7PhPA+6l56/czcH4pIppzg==[/tex]是由方程[tex=8.786x2.929]fnpmC2J6JmQBLyo5NmGAzyR310aygplzCmUR4jqnEbUnEGaSkRV4OpPv7tnONE0ENpQ3dhuZ8s9fS7tRGtDXg3URpf+pdU79BvvKCoFgCUfdy2ik0HyRJFoCNgLPsL0u[/tex]所确定的隐函数,求[tex=3.071x2.429]weG6YZZXyk4CvOga1p5T8EMwSTOYu7fYvaKU5kZNrYmA9VK/GexFpIRMS1q/caMt[/tex]和[tex=3.5x2.429]2v6uP/r971V6gwaFhNlZkTsijQe57utvVjKj5PuzySp+oqWxLG3KfPiSIWvtqTFH[/tex] .
设[tex=3.571x1.286]7PhPA+6l56/czcH4pIppzg==[/tex]是由方程[tex=8.786x2.929]fnpmC2J6JmQBLyo5NmGAzyR310aygplzCmUR4jqnEbUnEGaSkRV4OpPv7tnONE0ENpQ3dhuZ8s9fS7tRGtDXg3URpf+pdU79BvvKCoFgCUfdy2ik0HyRJFoCNgLPsL0u[/tex]所确定的隐函数,求[tex=3.071x2.429]weG6YZZXyk4CvOga1p5T8EMwSTOYu7fYvaKU5kZNrYmA9VK/GexFpIRMS1q/caMt[/tex]和[tex=3.5x2.429]2v6uP/r971V6gwaFhNlZkTsijQe57utvVjKj5PuzySp+oqWxLG3KfPiSIWvtqTFH[/tex] .
用导线全长相对闭合差来衡量导线测量精度的公式是 未知类型:{'options': ['[tex=3.071x2.429]EgvUzIm6/g08VJP2aK43eA==[/tex]', '[tex=5.857x2.643]JrnTIDtHsTwNpEoCTC1I00PMRh0GAXd59Qr8vmhQMUI=[/tex]', '[tex=6.5x2.643]luOS1Y9QEMT1sRozTF+NJWK49KlytPu3TCt/As/XuBylyRakm56ZlsGxH/41Sr2f[/tex]'], 'type': 102}
用导线全长相对闭合差来衡量导线测量精度的公式是 未知类型:{'options': ['[tex=3.071x2.429]EgvUzIm6/g08VJP2aK43eA==[/tex]', '[tex=5.857x2.643]JrnTIDtHsTwNpEoCTC1I00PMRh0GAXd59Qr8vmhQMUI=[/tex]', '[tex=6.5x2.643]luOS1Y9QEMT1sRozTF+NJWK49KlytPu3TCt/As/XuBylyRakm56ZlsGxH/41Sr2f[/tex]'], 'type': 102}
下列变量组()是一个闭回路。 A: {x,x,x,x,x,x} B: {x,x,x,x,x} C: {x,x,x,x,x,x} D: {x,x,x,x,x,x}
下列变量组()是一个闭回路。 A: {x,x,x,x,x,x} B: {x,x,x,x,x} C: {x,x,x,x,x,x} D: {x,x,x,x,x,x}
以下谓词蕴含式正确的是(): (∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)|(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)|(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))|(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)
以下谓词蕴含式正确的是(): (∀x) (A(x)→B(x))=>( ∀x)A(x)→(∀x)B(x)|(∀x) (A(x)↔B(x))=>( ∀x)A(x)↔(∀x)B(x)|(∀x)A(x)∨(∀x)B(x)=>( ∀x) (A(x)∨B(x))|(∃x) (A(x)∧B(x))=>(∃x)A(x)∧(∃x)B(x)
以下谓词蕴含式正确的是(): (?x) (A(x)→B(x))=>( ?x)A(x)→(?x)B(x)|(?x) (A(x)?B(x))=>( ?x)A(x)?(?x)B(x)|(?x)A(x)∨(?x)B(x)=>( ?x) (A(x)∨B(x))|(?x) (A(x)∧B(x))=>(?x)A(x)∧(?x)B(x)
以下谓词蕴含式正确的是(): (?x) (A(x)→B(x))=>( ?x)A(x)→(?x)B(x)|(?x) (A(x)?B(x))=>( ?x)A(x)?(?x)B(x)|(?x)A(x)∨(?x)B(x)=>( ?x) (A(x)∨B(x))|(?x) (A(x)∧B(x))=>(?x)A(x)∧(?x)B(x)