图示阴影截面对z轴的惯性矩[img=14x22]18034ce626c8a96.png[/img]等于( )。[img=243x258]18034ce632509b1.jpg[/img]
A: [img=148x43]18034ce63e17505.png[/img]
B: [img=149x43]18034ce64baf438.png[/img]
C: [img=157x43]18034ce656cddc0.png[/img]
D: [img=148x43]18034ce661e481d.png[/img]
A: [img=148x43]18034ce63e17505.png[/img]
B: [img=149x43]18034ce64baf438.png[/img]
C: [img=157x43]18034ce656cddc0.png[/img]
D: [img=148x43]18034ce661e481d.png[/img]
举一反三
- 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]
- 图示阴影截面对z轴的惯性矩[img=11x18]17e0a8fde8dc08c.jpg[/img]等于[img=232x240]17e0a901f6b9656.png[/img] 未知类型：{'options': ['', ' [img=149x43]17e0a9020b785a0.png[/img]', ' [img=157x43]17e0a90214b0853.png[/img]', ' [img=148x43]17e0a9021f7bb42.png[/img]'], 'type': 102}
- 图示阴影截面对z轴的惯性矩[img=11x18]17e439622a83d8a.jpg[/img]等于[img=232x240]17e439bd8c42d8f.png[/img] 未知类型：{'options': ['', ' [img=149x43]17e439bda0edbe5.png[/img]', ' [img=157x43]17e439bdaa42921.png[/img]', ' [img=148x43]17e439bdb394615.png[/img]'], 'type': 102}
- 图示电路为CE组态放大器。[img=298x240]18032d5df6ce32b.jpg[/img]
- 图示电路为CE组态放大器。[img=298x240]18032d5fca08c25.jpg[/img]