若描述某二阶连续时间LTI系统的微分方程为[img=339x26]1802d5413e2ba6f.png[/img]则该系统单冲激响应[img=31x25]1802d5414638f67.png[/img]的形式为( )
未知类型:{'options': ['[img src="http://img0.ph.126.net/XriexnI8llLzMaGU4DnpMw==/6631896797465841618.png"]', '[img src="http://img0.ph.126.net/RJfus-4_W0aDlayaOOy6Iw==/6631874807233285998.png"]', '[img src="http://img2.ph.126.net/A3EL-huCLtby0oFPywaK-A==/6631853916512358077.png"]', ''], 'type': 102}
未知类型:{'options': ['[img src="http://img0.ph.126.net/XriexnI8llLzMaGU4DnpMw==/6631896797465841618.png"]', '[img src="http://img0.ph.126.net/RJfus-4_W0aDlayaOOy6Iw==/6631874807233285998.png"]', '[img src="http://img2.ph.126.net/A3EL-huCLtby0oFPywaK-A==/6631853916512358077.png"]', ''], 'type': 102}
举一反三
- 电磁场量的法向边界条件为()。 未知类型:{'options': ['[img src="http://img0.ph.126.net/EsIkaXjnKukiyimHp6dYpQ==/6630400362140980911.png"]', '[img src="http://img1.ph.126.net/Qvas15HCDc_RrWbLruYPRw==/6619063297747523047.png"]', '[img src="http://img0.ph.126.net/DRI9k3pVjDPeDmngiOgT3Q==/6630279415861923459.png"]', '[img src="http://img2.ph.126.net/IiW1SDf3LX-s_IKSk4Vpvg==/6619471216561427789.png"]'], 'type': 102}
- [ ]是平面简谐波波函数。 未知类型:{'options': ['[img src="http://img2.ph.126.net/wjV5ynMkHOZWU6tVOJpgWQ==/6631558147884798602.png"]', '[img src="http://img1.ph.126.net/BYK6eRy2m3CFIGn6uOyBvg==/6631603227861540016.png"]', '[img src="http://img2.ph.126.net/YpG0D7ifszUGb3ZVafQx3g==/6631454793791791103.png"]', '[img src="http://img1.ph.126.net/P6Qa6Cllm5RRaIcGlnUM_g==/6631739567303384107.png"]'], 'type': 102}
- 一弹簧振子作简谐运动,当位移为振幅的一半时,其动能为总能量的 未知类型:{'options': ['[img src="http://img0.ph.126.net/jpAueoBytuZa6k2wwwW9OA==/855683929300814862.jpg"]', '[img src="http://img0.ph.126.net/wUiBfDcpwubnnTfUqXWe8g==/2988138352860486966.jpg"]', '[img src="http://img0.ph.126.net/BmhE5DieqvLPa8Q2yuK6PQ==/2077566803201671014.jpg"]', '[img src="http://img0.ph.126.net/OaayZdr_Aj3S8aprU5kpSA==/6619163353304620563.jpg"]'], 'type': 102}
- 设[img src="http://edu-image.nosdn.127.net/_PhotoUploadUtils_067016aa-77f2-4aff-bd36-e3fa5f1bd893.png"],[img src="http://edu-image.nosdn.127.net/_PhotoUploadUtils_358ab06c-7f19-4ae6-ba82-424c72bd4d18.png"],则[img src="http://edu-image.nosdn.127.net/_PhotoUploadUtils_2b561af0-b65d-4e5e-936b-72b15b4f0f56.png"][img src="http://edu-image.nosdn.127.net/_PhotoUploadUtils_92284d1b-6fe3-4dc1-a732-618796cd01a4.png"] A: 6 B: 10 C: 8 D: 4
- 设微分方程:[img=146x26]1802e6c422ff812.png[/img],则它的特解形式为( ) 未知类型:{'options': ['', '', '[img src="http://img0.ph.126.net/ANyDdznvr-NXCG_U-AoP0w==/6631985857909045587.png"]', ''], 'type': 102}