单元偶极子在自由空间中激发电磁场，一下说法错误的是
A: [img=525x38]1802fae2bdbf71a.jpg[/img]
B: [img=555x33]1802fae2c89f863.jpg[/img]
C: [img=586x66]1802fae2d417d5b.jpg[/img]
D: [img=690x56]1802fae2e5d7565.bmp[/img]
A: [img=525x38]1802fae2bdbf71a.jpg[/img]
B: [img=555x33]1802fae2c89f863.jpg[/img]
C: [img=586x66]1802fae2d417d5b.jpg[/img]
D: [img=690x56]1802fae2e5d7565.bmp[/img]
举一反三
- 单元偶极子在自由空间中激发电磁场，一下说法错误的是 A: [img=525x38]1802fadcd50b101.jpg[/img] B: [img=555x33]1802fadce0a488e.jpg[/img] C: [img=586x66]1802fadceb3d408.jpg[/img] D: [img=690x56]1802fadcfedda76.bmp[/img]
- 单元偶极子在自由空间中激发电磁场，一下说法错误的是 A: [img=525x38]18039806398a167.jpg[/img] B: [img=555x33]18039806443b401.jpg[/img] C: [img=586x66]180398064f586d9.jpg[/img] D: [img=690x56]1803980660ed99a.bmp[/img]
- 1.设随机变量X的密度为[img=186x61]18034ea953ec9dd.png[/img]则常数A=________，概率[img=146x25]18034ea95d30d08.png[/img]__________. A: A=2，P(X>1|X<2)=[img=39x24]18034ea9659b618.png[/img] B: A=-2，P(X>1|X<2)=[img=39x24]18034ea9659b618.png[/img] C: A=2，P(X>1|X<2)=[img=47x44]18034ea9768a8c2.png[/img] D: A=-2，P(X>1|X<2)=[img=47x44]18034ea9768a8c2.png[/img]
- 1.设随机变量X的密度为[img=186x61]17de8981070b17c.png[/img]则常数A=________，概率[img=146x25]17de8981130ab0e.png[/img]__________. 未知类型：{'options': ['A=2，P(X>;1|X<;2)=[img=39x24]17de89811f6f1b0.png[/img]', 'A=-2，P(X>;1|X<;2)=[img=39x24]17de89811f6f1b0.png[/img]', 'A=2，P(X>;1|X<;2)=[img=47x44]17de89812b3a28c.png[/img]', 'A=-2，P(X>;1|X<;2)=[img=47x44]17de89812b3a28c.png[/img]'], 'type': 102}
- 1.设随机变量X的密度为[img=186x61]17de8981070b17c.png[/img]则常数A=________，概率[img=146x25]17de8981130ab0e.png[/img]__________. 未知类型：{'options': ['A=2，P(X>;1|X<;2)=[img=39x24]17de89811f6f1b0.png[/img]', 'A=-2，P(X>;1|X<;2)=[img=39x24]17de89811f6f1b0.png[/img]', 'A=2，P(X>;1|X<;2)=[img=47x44]17de89812b3a28c.png[/img]', 'A=-2，P(X>;1|X<;2)=[img=47x44]17de89812b3a28c.png[/img]'], 'type': 102}