下列关于PN结伏安特性方程中，正确的是 。
A: [img=97x26]1802d1e4522afb2.jpg[/img]
B: [img=97x26]1802d1e45b00456.jpg[/img]
C: [img=97x26]1802d1e465bab49.jpg[/img]
D: [img=97x26]1802d1e471a818d.jpg[/img]
A: [img=97x26]1802d1e4522afb2.jpg[/img]
B: [img=97x26]1802d1e45b00456.jpg[/img]
C: [img=97x26]1802d1e465bab49.jpg[/img]
D: [img=97x26]1802d1e471a818d.jpg[/img]
举一反三
- 设函数[img=217x46]1803b358c3a34d0.png[/img]，则 [img=97x26]1803b358cb88315.png[/img]. A: 0 B: [img=23x20]1803b358d3373cd.png[/img] C: 1 D: 2
- 微分方程[img=93x47]1803d34b7aff582.png[/img]通解是（ ） A: x + y = c B: [img=88x26]1803d34b83ae917.png[/img] C: [img=82x22]1803d34b8b80242.png[/img] D: [img=97x26]1803d34b94685ca.png[/img]
- 设方程[img=97x26]18039625c57ece9.png[/img]确定z=z(x,y),下列式子成立的是 A: [img=87x47]18039625ce12c99.png[/img] B: [img=94x47]18039625d654b58.png[/img] C: [img=87x47]18039625de9e8c9.png[/img] D: [img=86x47]18039625e603959.png[/img] E: [img=87x47]18039625eecea9b.png[/img]
- 计算定积分[img=168x53]1802e6b2ec31d0e.png[/img]的值为( ) A: [img=58x43]1802e6b2f50963b.png[/img] B: [img=74x43]1802e6b2fdc224f.png[/img] C: [img=97x26]1802e6b30534c06.png[/img] D: [img=97x26]1802e6b30e4d4f1.png[/img]
- 计算定积分[img=168x53]1802e690826db4f.png[/img]的值为( ) A: [img=58x43]1802e6908b7d814.png[/img] B: [img=74x43]1802e690949db8a.png[/img] C: [img=97x26]1802e6909da93fb.png[/img] D: [img=97x26]1802e690a6e3fd4.png[/img]