以[img=92x23]18036eecc8d2005.png[/img]为特解的二阶线性齐次微分方程为（ ）． A: [img=172x26]18036eecd1a3d10.png[/img] B: [img=172x26]18036eecda732e6.png[/img] C: [img=172x26]18036eece302294.png[/img] D: [img=172x26]18036eeceabba54.png[/img]
以[img=92x23]18036eecc8d2005.png[/img]为特解的二阶线性齐次微分方程为（ ）． A: [img=172x26]18036eecd1a3d10.png[/img] B: [img=172x26]18036eecda732e6.png[/img] C: [img=172x26]18036eece302294.png[/img] D: [img=172x26]18036eeceabba54.png[/img]
以[img=92x23]18039c989e2745c.png[/img]为特解的二阶线性齐次微分方程为（ ）． A: [img=172x26]18039c98a7ea875.png[/img] B: [img=172x26]18039c98b075c4f.png[/img] C: [img=172x26]18039c98b90611b.png[/img] D: [img=172x26]18039c98c1d0dd6.png[/img]
以[img=92x23]18039c989e2745c.png[/img]为特解的二阶线性齐次微分方程为（ ）． A: [img=172x26]18039c98a7ea875.png[/img] B: [img=172x26]18039c98b075c4f.png[/img] C: [img=172x26]18039c98b90611b.png[/img] D: [img=172x26]18039c98c1d0dd6.png[/img]
以[img=92x23]1802cfcc12b0961.png[/img]为特解的二阶线性齐次微分方程为（ ）． A: [img=172x26]1802cfcc1b77400.png[/img] B: [img=172x26]1802cfcc24975ff.png[/img] C: [img=172x26]1802cfcc2db41fe.png[/img] D: [img=172x26]1802cfcc3688b5a.png[/img]
以[img=92x23]1802cfcc12b0961.png[/img]为特解的二阶线性齐次微分方程为（ ）． A: [img=172x26]1802cfcc1b77400.png[/img] B: [img=172x26]1802cfcc24975ff.png[/img] C: [img=172x26]1802cfcc2db41fe.png[/img] D: [img=172x26]1802cfcc3688b5a.png[/img]
1803425dbc03eb7.png核外电子排布式为 A: [img=172x26]1803425dcbe7435.png[/img] B: [img=148x26]1803425dd4aae07.png[/img] C: [img=172x26]1803425de1dd111.png[/img] D: [img=172x26]1803425df0922c0.png[/img]
1803425dbc03eb7.png核外电子排布式为 A: [img=172x26]1803425dcbe7435.png[/img] B: [img=148x26]1803425dd4aae07.png[/img] C: [img=172x26]1803425de1dd111.png[/img] D: [img=172x26]1803425df0922c0.png[/img]
172
172
计算x÷6/35=26/45×13/25
计算x÷6/35=26/45×13/25
int x,y;x=17;y=26;printf(%d,y/=(x%=6));程序段的运行结果是
int x,y;x=17;y=26;printf(%d,y/=(x%=6));程序段的运行结果是
172转换成二进制是
172转换成二进制是
假设x=2, x*=3+5**2的结果是：（ ）。 A: 56 B: 31 C: 26 D: 16
假设x=2, x*=3+5**2的结果是：（ ）。 A: 56 B: 31 C: 26 D: 16
172转换成二进制以后是（
172转换成二进制以后是（