【单选题】
<img title=无标题417.jpg alt=无标题417.jpg src=https://huaweicloudobs.ahjxjy.cn/3C8C33825C525C3909845A7ADAD98762.jpg/>
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/FB38101755F6639BFA659D3FB3CF79C6.png data-tex=\dot { { U }_{ C } } =32.36\angle { -63.45 }^{ 0 }V,\dot { { I }_{ 1 } } =5\angle { 53.1 }^{ 0 }A,\dot { { I }_{ 2 } } =-5\sqrt { 2 } \angle { 8.1 }^{ 0 }A/>
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/997F0847A50E523E1C43446F8F6079F4.png data-tex=\dot { { U }_{ C } } =22.36\angle { -63.45 }^{ 0 }V,\dot { { I }_{ 1 } } =5\angle { 53.1 }^{ 0 }A,\dot { { I }_{ 2 } } =-5\sqrt { 2 } \angle { 8.1 }^{ 0 }A/>
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/A26AF8F81872B46D6313DE5F93927958.png data-tex=\dot { { U }_{ C } } =22.36\angle { -63.45 }^{ 0 }V,\dot { { I }_{ 1 } } =10\angle { 53.1 }^{ 0 }A,\dot { { I }_{ 2 } } =-5\sqrt { 2 } \angle { 8.1 }^{ 0 }A/>
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/36937C21B93804AEE99D477F4248F1D1.png data-tex=\dot { { U }_{ C } } =22.36\angle { -63.45 }^{ 0 }V,\dot { { I }_{ 1 } } =5\angle { 53.1 }^{ 0 }A,\dot { { I }_{ 2 } } =-10\sqrt { 2 } \angle { 8.1 }^{ 0 }A/>
【单选题】
<img title=无标题66.jpg alt=无标题66.jpg src=https://huaweicloudobs.ahjxjy.cn/209C1DA2B0DD9CEEB31C48D2D4349793.jpg/>
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/776E7FB3EE0FF5BDBF547B354244B455.png data-tex=(1){ I }_{ l }=10A\\ (2){ Z }_{ Y }=(21.7+j28.9)\Omega \\ (3){ Z }_{ \triangle }=(65+j86.6)\Omega />
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/011AE5E8D57BA4D914645D9E6EDE5314.png data-tex=(1){ I }_{ l }=6.1A\\ (2){ Z }_{ Y }=(21.7+j28.9)\Omega \\ (3){ Z }_{ \triangle }=(65+j86.6)\Omega />
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/C15919896A8FEC91CD81B9037B88D2A2.png data-tex=(1){ I }_{ l }=6.1A\\ (2){ Z }_{ Y }=(21.7+j28.9)\Omega \\ (3){ Z }_{ \triangle }=(65+j60.2)\Omega />
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/1EB1AC46A4977FCC911BE9875F074539.png data-tex=(1){ I }_{ l }=6.1A\\ (2){ Z }_{ Y }=(89.5+j28.9)\Omega \\ (3){ Z }_{ \triangle }=(65+j86.6)\Omega />