18036fe4fde9b81.png是方程[img=189x26]18036fe50755903.png[/img]的两个任意解，则[img=162x25]18036fe51068938.png[/img]是方程[img=189x26]18036fe50755903.png[/img]的通解。
举一反三
- 18036fe510654e0.png是微分方程 [img=199x26]18036fe51ede438.png[/img]的两个任意解，则[img=93x25]18036fe527c9dc6.png[/img]是方程[img=189x26]18036fe5357e7ca.png[/img]的解。
- 用强度为I，波长为[img=27x24]1802e3021e829f1.png[/img]的X射线(伦琴射线)分别照射锂Li（Z = 3）和铁Fe（Z = 26）．若在同一散射角下测得康普顿散射的X射线波长分别为[img=27x24]1802e3021e829f1.png[/img]Li和[img=27x24]1802e3021e829f1.png[/img]Fe（[img=27x24]1802e3021e829f1.png[/img]Li，[img=27x24]1802e3021e829f1.png[/img]Fe>[img=27x24]1802e3021e829f1.png[/img]），它们对应的强度分别为[img=27x24]1802e3021e829f1.png[/img]Li和[img=27x24]1802e3021e829f1.png[/img]Fe，则 A: [img=177x37]1802e30262d047c.png[/img] B: [img=173x32]1802e3026b65037.png[/img] C: [img=175x34]1802e3027495042.png[/img] D: [img=175x34]1802e3027d0b84c.png[/img]
- 对电极反应反应Fe[img=17x22]1803dd593688451.png[/img]+e[img=11x21]1803dd593f0ee2e.png[/img]=Fe[img=17x22]1803dd5946fb818.png[/img]中有关离子浓度都减小一半时，φ (Fe[img=17x22]1803dd594f9ef1d.png[/img]/Fe[img=17x22]1803dd5958240ac.png[/img])的值不变。( )
- 原电池（-）Pt︱Fe[img=17x22]1803dd54de61136.png[/img](1 mol·L[img=17x22]1803dd54e7299c0.png[/img]),Fe[img=17x22]1803dd54f0030fb.png[/img](1 mol·L[img=17x22]1803dd54fa39c0d.png[/img])‖Ce[img=17x22]1803dd5502f9d6b.png[/img]( mol·L[img=17x22]1803dd550b82a7d.png[/img]) ,Ce[img=17x22]1803dd55130efd2.png[/img]( mol·L[img=17x22]1803dd551af174c.png[/img]) ︱Pt(+)的电池反应是( )。 A: Ce[img=17x22]1803dd552375aee.png[/img] + Fe[img=17x22]1803dd552ca7541.png[/img] = Ce[img=17x22]1803dd5534dbdef.png[/img] + Fe[img=17x22]1803dd553dc33d1.png[/img] B: Ce[img=17x22]1803dd552375aee.png[/img] + Fe[img=17x22]1803dd553dc33d1.png[/img] = Ce[img=17x22]1803dd5534dbdef.png[/img] + Fe[img=17x22]1803dd552ca7541.png[/img] C: Ce[img=17x22]1803dd5534dbdef.png[/img] + Fe[img=17x22]1803dd553dc33d1.png[/img] = Ce[img=17x22]1803dd552375aee.png[/img] + Fe[img=17x22]1803dd552ca7541.png[/img] D: Ce[img=17x22]1803dd5534dbdef.png[/img] + Fe[img=17x22]1803dd552ca7541.png[/img] = Ce[img=17x22]1803dd552375aee.png[/img] + Fe[img=17x22]1803dd553dc33d1.png[/img]
- 以 [img=170x30]18031bad4957108.png[/img] 为通解的二阶线性微分方程是 A: [img=189x26]18031bad51a66bc.png[/img] B: [img=189x26]18031bad59427a7.png[/img] C: [img=197x26]18031bad62a752f.png[/img] D: [img=197x26]18031bad6b44b57.png[/img]