【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 />
【单选题】
<img title=无标题62.jpg alt=无标题62.jpg src=https://huaweicloudobs.ahjxjy.cn/D1D8B7C4E28B32B379A51FC296400082.jpg/>
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/88919D4D1D96E2BA00B84A0DB7530A74.png data-tex={ I }_{ A }=22A/>
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/52F91CB9E4C157B28780FE1DC00BA21B.png data-tex={ I }_{ A }=38A/>
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/5D66ABD668ACB7810FE3DE26D3C97D2A.png data-tex={ I }_{ A }=44A/>
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/122DCB9E92DDA4A070638470FB163C61.png data-tex={ I }_{ A }=20A/>
【单选题】
<img title=无标题510.jpg alt=无标题510.jpg src=https://huaweicloudobs.ahjxjy.cn/A39E160380B82FC26AD5BD65F42C96E2.jpg/>
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/1F81EC0518938BA76A80E3EBFB772D2E.png data-tex=[{ R }_{ 1 }+j\omega ({ L }_{ 1 }-M)+{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 1 } } -[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 2 } } =\dot { { U }_{ 1 } } \\ -[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 1 } } +[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)+R+j\omega M-j\frac { 1 }{ \omega C } ]\dot { { I }_{ 2 } } =0/>
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/1665B2B92A716A59AA7889FFB2C22DAF.png data-tex=[{ R }_{ 1 }+j\omega ({ L }_{ 1 }-M)+{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 1 } } -[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 2 } } =\dot { { U }_{ 1 } } \\ -[{ R }_{ 1 }+j\omega ({ L }_{ 1 }-M)]\dot { { I }_{ 1 } } +[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)+R+j\omega M-j\frac { 1 }{ \omega C } ]\dot { { I }_{ 2 } } =0/>
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/A0C5575497B6B2297F7D95C9E867756D.png data-tex=[{ R }_{ 1 }+j\omega ({ L }_{ 1 }-M)+{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 1 } } -[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 2 } } =\dot { { U }_{ 1 } } \\ -[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 1 } } +[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)+R+j\omega M+j\frac { 1 }{ \omega C } ]\dot { { I }_{ 2 } } =0/>
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/8F29A9FCFFFB39EE813F2A0F49FB7469.png data-tex=[{ R }_{ 1 }+j\omega ({ L }_{ 1 }-M)+{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 1 } } -[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 2 } } =\dot { { U }_{ 1 } } \\ -[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)]\dot { { I }_{ 2 } } +[{ R }_{ 2 }+j\omega ({ L }_{ 2 }-M)+R+j\omega M-j\frac { 1 }{ \omega C } ]\dot { { I }_{ 21} } =0/>
【单选题】
<img title=无标题518.jpg alt=无标题518.jpg src=https://huaweicloudobs.ahjxjy.cn/24BC6FB0BE5E3597CD12D0153DD1C95B.jpg/>
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/2D05853C76815C7CF7E22682632CB17E.png data-tex={ n }_{ 1 }=1\quad ,\quad { n }_{ 2 }=3\quad ,\quad { P }_{ max }=20W/>
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/FDFC60BECA9CC39363CAA5B0B5E848E4.png data-tex={ n }_{ 1 }=0.5\quad ,\quad { n }_{ 2 }=2\quad ,\quad { P }_{ max }=20W/>
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/131433945D09038AF269E1A5275736DE.png data-tex={ n }_{ 1 }=0.5\quad ,\quad { n }_{ 2 }=3\quad ,\quad { P }_{ max }=20W/>
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/439B923F6E5E50275D1774039E0461F3.png data-tex={ n }_{ 1 }=0.5\quad ,\quad { n }_{ 2 }=3\quad ,\quad { P }_{ max }=10W/>
【单选题】
如图，属于（）。<img src="20190810/1565429268224710.jpg" title="1565429268224710.jpg" alt="无标题.jpg"/>
①
控制附件
②
配水附件
【单选题】
<img title=无标题410.jpg alt=无标题410.jpg src=https://huaweicloudobs.ahjxjy.cn/9F49FB2190789FFD2F9D5E8D8362F0F8.jpg/>
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/3F6EE769CB63FF491B3AE9C590CFC4C4.png data-tex=(a)Z=j0.05\Omega ,Y=-j20S\\ (b)Z=(1.3+j4.8)\Omega ,Y=(4.8-j0.2)S/>
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/5F08668FE74FE9D6D35D5204C07C59E8.png data-tex=(a)Z=j20\Omega ,Y=-j0.05S\\ (b)Z=(1.3+j4.8)\Omega ,Y=(4.8-j0.2)S/>
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/AF74771289508ADB6C160414B06F2966.png data-tex=(a)Z=j20\Omega ,Y=-j0.05S\\ (b)Z=(5+j4.8)\Omega ,Y=(4.8-j0.2)S/>
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/717FA115D6F41ABBABC72F1D625711C4.png data-tex=(a)Z=j20\Omega ,Y=-j0.05S\\ (b)Z=(1.3+j4.8)\Omega ,Y=(0.2-j0.2)S/>
【单选题】
<img title=无标题47.jpg alt=无标题47.jpg src=https://huaweicloudobs.ahjxjy.cn/E0E40FC3D07C4C80ED64D61DC82A1C13.jpg/>
①
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/7C42ECA2C635AED543397F174865AE9F.png data-tex=(a){ R }_{ eq }=1\Omega ,{ X }_{ eq }=0\Omega ,锛堢數闃伙級\\ (b){ R }_{ eq }=10\Omega ,{ X }_{ eq }=17.32\Omega ,锛堢數闃?鐢垫劅锛塡\ (c){ R }_{ eq }=0\Omega ,{ X }_{ eq }=20\Omega ,锛堢數鎰燂級/>
②
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/DAFCFD487D0691D5A7F4B8056D1D297F.png data-tex=(a){ R }_{ eq }=10\Omega ,{ X }_{ eq }=0\Omega ,锛堢數闃伙級\\ (b){ R }_{ eq }=10\Omega ,{ X }_{ eq }=17.32\Omega ,锛堢數闃?鐢垫劅锛塡\ (c){ R }_{ eq }=0\Omega ,{ X }_{ eq }=20\Omega ,锛堢數鎰燂級/>
③
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/BD537EC07339D30E6EC1AFBB321CDEDD.png data-tex=(a){ R }_{ eq }=1\Omega ,{ X }_{ eq }=0\Omega ,锛堢數闃伙級\\ (b){ R }_{ eq }=10\Omega ,{ X }_{ eq }=17.32\Omega ,锛堢數闃?鐢垫劅锛塡\ (c){ R }_{ eq }=0\Omega ,{ X }_{ eq }=10\Omega ,锛堢數鎰燂級/>
④
<img class=jc-formula style=vertical-align: middle; src=https://huaweicloudobs.ahjxjy.cn/5CC12E3BFAE388BEB31E384F31AF73C4.png data-tex=(a){ R }_{ eq }=1\Omega ,{ X }_{ eq }=0\Omega ,锛堢數闃伙級\\ (b){ R }_{ eq }=10\Omega ,{ X }_{ eq }=10\Omega ,锛堢數闃?鐢垫劅锛塡\ (c){ R }_{ eq }=0\Omega ,{ X }_{ eq }=20\Omega ,锛堢數鎰燂級/>