In what way is General Xiang Y...riely’s experiments?
In what way is General Xiang Y...riely’s experiments?
以下C程序正确的运行结果是 。 main() { long y=-43456; printf ("y=%-8ld\n",y); printf ("y=%-08ld\n",y); printf ("y=%08ld\n",y); printf ("y=%+8ld\n",y); }: y=-43456 y=-43456 y=-0043456 y=+□-43456|y=-43456 y=-43456 y=-0043456 y=□□-43456|y=□□-43456 y=-0043456 y=00043456 y=+43456|y=□□-43456 y=-□□43456 y=-0043456 y=-43456
以下C程序正确的运行结果是 。 main() { long y=-43456; printf ("y=%-8ld\n",y); printf ("y=%-08ld\n",y); printf ("y=%08ld\n",y); printf ("y=%+8ld\n",y); }: y=-43456 y=-43456 y=-0043456 y=+□-43456|y=-43456 y=-43456 y=-0043456 y=□□-43456|y=□□-43456 y=-0043456 y=00043456 y=+43456|y=□□-43456 y=-□□43456 y=-0043456 y=-43456
以下C程序正确的运行结果是 。 main() { long y=-43456; printf ("y=%-8ld ",y); printf ("y=%-08ld ",y); printf ("y=%08ld ",y); printf ("y=%+8ld ",y); }: y=-43456 y=-43456 y=-0043456 y=+□-43456|y=-43456 y=-43456 y=-0043456 y=□□-43456|y=□□-43456 y=-0043456 y=00043456 y=+434
以下C程序正确的运行结果是 。 main() { long y=-43456; printf ("y=%-8ld ",y); printf ("y=%-08ld ",y); printf ("y=%08ld ",y); printf ("y=%+8ld ",y); }: y=-43456 y=-43456 y=-0043456 y=+□-43456|y=-43456 y=-43456 y=-0043456 y=□□-43456|y=□□-43456 y=-0043456 y=00043456 y=+434
函数y=x²-1的值域是( ) A: {y|y≥1} B: {y|y≥-1} C: {y|y≤1} D: {y|y≤-1}
函数y=x²-1的值域是( ) A: {y|y≥1} B: {y|y≥-1} C: {y|y≤1} D: {y|y≤-1}
已知点()(()-()1(),()y()1())(),()(2(),()y()2())(),()(()-()3(),()y()3())()都在函数()y()=()x()2()的图象上,则()()A.()y()1()<()y()2()<()y()3()B.()y()1()<()y()3()<()y()2()C.()y()3()<()y()2()<()y()1()D.()y()2()<()y()1()<()y()3
已知点()(()-()1(),()y()1())(),()(2(),()y()2())(),()(()-()3(),()y()3())()都在函数()y()=()x()2()的图象上,则()()A.()y()1()<()y()2()<()y()3()B.()y()1()<()y()3()<()y()2()C.()y()3()<()y()2()<()y()1()D.()y()2()<()y()1()<()y()3
用3线-8译码器74LS138和辅助门电路实现逻辑函数F=A2+A2’A1’,应()。 A: 用与非门,F=(Y’Y’Y’Y’Y’Y’)’ B: 用与门,F=Y’Y’ C: 用或门,F=Y’+Y’ D: 用或门,F=Y’+Y’+Y’+Y’+Y’+Y’
用3线-8译码器74LS138和辅助门电路实现逻辑函数F=A2+A2’A1’,应()。 A: 用与非门,F=(Y’Y’Y’Y’Y’Y’)’ B: 用与门,F=Y’Y’ C: 用或门,F=Y’+Y’ D: 用或门,F=Y’+Y’+Y’+Y’+Y’+Y’
下列语句正确的是____。 A: If X<3*Y And X>Y Then Y=X3 B: If X<3*Y , X>Y Then Y=X3 C: If X<3*Y : X>Y Then Y=X3 D: If X<3*Y And X>Y Then Y=X* *3
下列语句正确的是____。 A: If X<3*Y And X>Y Then Y=X3 B: If X<3*Y , X>Y Then Y=X3 C: If X<3*Y : X>Y Then Y=X3 D: If X<3*Y And X>Y Then Y=X* *3
设\(z = {e^ { { y \over x}}} + {x^y} + {y^x}\),则\({z_x} = \) A: \({1 \over x}{e^ { { y \over x}}} + {x^y}\ln x + x{y^{x - 1}}\) B: \(- {y \over { { x^2}}}{e^ { { y \over x}}} + {x^y}\ln x + x{y^{x - 1}}\) C: \({e^ { { y \over x}}} + y{x^{y - 1}} + {y^x}\ln y\) D: \( - {y \over { { x^2}}}{e^ { { y \over x}}} + y{x^{y - 1}} + {y^x}\ln y\)
设\(z = {e^ { { y \over x}}} + {x^y} + {y^x}\),则\({z_x} = \) A: \({1 \over x}{e^ { { y \over x}}} + {x^y}\ln x + x{y^{x - 1}}\) B: \(- {y \over { { x^2}}}{e^ { { y \over x}}} + {x^y}\ln x + x{y^{x - 1}}\) C: \({e^ { { y \over x}}} + y{x^{y - 1}} + {y^x}\ln y\) D: \( - {y \over { { x^2}}}{e^ { { y \over x}}} + y{x^{y - 1}} + {y^x}\ln y\)
下列哪个函数y不是微分方程y’’+y=0的解:? y=3cosx|y=2sinx|y=2sinx+3|y=2sinx+3cosx
下列哪个函数y不是微分方程y’’+y=0的解:? y=3cosx|y=2sinx|y=2sinx+3|y=2sinx+3cosx
∃ x∀ y ¬P(x , y)的否定是 A: ¬ ∀ x∃ y ¬ P(x , y) B: ∃ x ∀ y P(x , y) C: ∀ x ∃ y P(x , y) D: ∀ y∃ x P(x , y)
∃ x∀ y ¬P(x , y)的否定是 A: ¬ ∀ x∃ y ¬ P(x , y) B: ∃ x ∀ y P(x , y) C: ∀ x ∃ y P(x , y) D: ∀ y∃ x P(x , y)