【单选题】【消耗次数：1】
9.She does not_____ that she owes the money, but she just wouldn’t like to return it.
①
argue
②
. dispute
③
think
④
agree
参考答案：
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相关题目
【单选题】
____ money, she is quite rich. However, this does not mean that she is happy.
①
Concerning
②
As to
③
In terms of
④
In the light of
【单选题】
_____money, she is quite rich. However, this does not mean that she is happy.
①
Concerning
②
As to
③
In terms of
④
In the light of
【单选题】
3. She was so pleased that she felt like _______.
①
to find someone to talk
②
to find some to talk to
③
finding someone to talk
④
finding someone to talk to
【单选题】
17.She is stupid, but it’s different _____ Mary; she is just lazy.
①
in case
②
in case of
③
in case that
④
in the case of
【单选题】
She resorted to ____ when she had no money to buy foods for her children.
①
have stolen
②
steal
③
stole
④
stealing
【单选题】
She resorted to _____ when she had no money to buy foods for her children.
①
have stolen
②
steal
③
stole
④
stealing
【单选题】
She didn’ t come to the party last Sunday._____, she must
have made the party more exciting.
①
If she came
②
Would she come
③
Had she come
Did she come
随机题目
【单选题】
1-2在题图1-2（a）所示电路中，已知电容电流波形如题图1-2（b）所示，若<img class=jc-formula data-tex=u(0)=0V src=https://huaweicloudobs.ahjxjy.cn/CB3E66341CE102E1A0198ADF55F7ECF2.png style=vertical-align: middle;/>，求<img class=jc-formula data-tex={ u }_{ c }(t) src=https://huaweicloudobs.ahjxjy.cn/1E868EE2F011E025BB9181C33D42E73F.png style=vertical-align: middle;/>并画出其波形。<img src=https://huaweicloudobs.ahjxjy.cn/EE9F4BE4EB428F88B4A082D849B4965E.png title=捕获.PNG alt=捕获.PNG/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/0D47193E83EAD19F334FF85DA17BD069.png style= title=捕获1.PNG/><img src=https://huaweicloudobs.ahjxjy.cn/E008CCD7AC2485480D7C92FCD7E3605C.png title=捕获2.PNG/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/BF910EEE0C503813A046D61F1566ECA0.png style= title=捕获3.PNG/><img src=https://huaweicloudobs.ahjxjy.cn/3B9608CDB00D23635093138DB14C6333.png title=捕获4.PNG alt=捕获4.PNG width=181 height=170 style=width: 181px; height: 170px;/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/1D7C101BBFE52FDB74ED45C94B70460A.png title=捕获5.PNG alt=捕获5.PNG/><img src=https://huaweicloudobs.ahjxjy.cn/B9D1D24493A2F8B173EF24A16887E35C.png title=捕获6.PNG alt=捕获6.PNG width=178 height=158 style=width: 178px; height: 158px;/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/34EB1CD12C1FA783BC12896E315EE815.png title=11.PNG alt=11.PNG/><img src=https://huaweicloudobs.ahjxjy.cn/88A93EE5E25E9978E236230D5BC9255D.png title=12.PNG alt=12.PNG/>
【单选题】
1-6计算图1-6所示电路中负载吸收的功率。<img src=https://huaweicloudobs.ahjxjy.cn/4E31A023858FF1E4CE770CF0F2F350C5.png title=1-6.PNG alt=1-6.PNG/>
①
<img class=jc-formula data-tex=250W src=https://huaweicloudobs.ahjxjy.cn/71DB2ECD38A42CBFEAD1A73DE4D2CA22.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=-250W src=https://huaweicloudobs.ahjxjy.cn/A67BDA90F74302B896B16CD79A7671D8.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=90W src=https://huaweicloudobs.ahjxjy.cn/75DE63071556B28FA2849D93283BB238.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=-90W src=https://huaweicloudobs.ahjxjy.cn/CDF8E7154995F4E47156DDD0F31D9D17.png style=vertical-align: middle;/>
【单选题】
2-4应用支路电流法求题图2-4所示电路中的电流<img class=jc-formula data-tex={ I }_{ 1 },\quad { I }_{ 2 } src=https://huaweicloudobs.ahjxjy.cn/07E84BE6CD3710D833C6BCFD5D60F905.png style=vertical-align: middle;/>。<img src=https://huaweicloudobs.ahjxjy.cn/EC11F9DFA1628CC9EA7B31AA8C988763.png title=2-4.PNG alt=2-4.PNG/>
①
<img class=jc-formula data-tex={ I }_{ 1 }=-1A,\quad { I }_{ 2 }=-4A src=https://huaweicloudobs.ahjxjy.cn/B0896D5E27E8F90546D598F6605C8269.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex={ I }_{ 1 }=1A,\quad { I }_{ 2 }=4A src=https://huaweicloudobs.ahjxjy.cn/908CB7435C15FC844C5FAD090B688B2B.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex={ I }_{ 1 }=-1A,\quad { I }_{ 2 }=4A src=https://huaweicloudobs.ahjxjy.cn/585B380DE072748D346B1B6799169F42.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex={ I }_{ 1 }=1A,\quad { I }_{ 2 }=-4A src=https://huaweicloudobs.ahjxjy.cn/9793B8FC6A68D83DE19F6716CCD9F8A2.png style=vertical-align: middle;/>
【单选题】
2-3 应用电源的等效变换计算题图2-3所示电路中的电流<img class=jc-formula data-tex=i src=https://huaweicloudobs.ahjxjy.cn/641D2E4A3D85C72FAE695AE781733C7D.png style=vertical-align: middle;/>。<img src=https://huaweicloudobs.ahjxjy.cn/4334D3C8D3CDA7BBE14AA55ED43DB12E.png title=2-3.PNG alt=2-3.PNG/>
①
<img class=jc-formula data-tex=i=0.5A src=https://huaweicloudobs.ahjxjy.cn/36A3179738615E600D8A373ACC1287DB.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=i=-0.5A src=https://huaweicloudobs.ahjxjy.cn/C777C675F6B18786C9E1ED9812A770C6.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=i=1A src=https://huaweicloudobs.ahjxjy.cn/362940137AACCEA1628C86D9C27CC3B9.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=i=-1A src=https://huaweicloudobs.ahjxjy.cn/952096828605CA439243F9ABAA9A128F.png style=vertical-align: middle;/>
【单选题】
2-9 计算题图2-9所示电路中受控电压源发出的功率。<img src=https://huaweicloudobs.ahjxjy.cn/ADA2EDEAB47A14F874A5FFC429E309C3.png title=2-9.PNG alt=2-9.PNG/>
①
<img class=jc-formula data-tex=-\frac { 16 }{ 27 } W src=https://huaweicloudobs.ahjxjy.cn/0BF4B76AAA1E793D5A6D79E6A061EEA9.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=\frac { 16 }{ 27 } W src=https://huaweicloudobs.ahjxjy.cn/EDECF8C35E5FB103A5739C7A4702A611.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=-1.69W src=https://huaweicloudobs.ahjxjy.cn/18FDBB46CFF5725FDF0DD34390216493.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=1.69W src=https://huaweicloudobs.ahjxjy.cn/52BF604AC5D4F3C2FEF8E757C938D326.png style=vertical-align: middle;/>
【单选题】
3-4求题图3-7所示电路的戴维宁等效电路。<img src=https://huaweicloudobs.ahjxjy.cn/67875014C473A837124B95F7A185DB41.png title=3-4.PNG alt=3-4.PNG/>
①
<img class=jc-formula data-tex={ U }_{ oc }=\frac { 70 }{ 11 } V,\quad { R }_{ eq }=19.55\Omega src=https://huaweicloudobs.ahjxjy.cn/5546F2D093FC14D3AC541417E7A82B33.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex={ U }_{ oc }=-\frac { 40 }{ 11 } V,\quad { R }_{ eq }=19.55\Omega src=https://huaweicloudobs.ahjxjy.cn/D08F3BF612B181EFF7492CB4CF080C61.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex={ U }_{ oc }=\frac { 40 }{ 11 } V,\quad { R }_{ eq }=\frac { 50 }{ 11 } \Omega src=https://huaweicloudobs.ahjxjy.cn/23F900BE26E277B31A3AE359A3108B1B.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex={ U }_{ oc }=-\frac { 70 }{ 11 } V,\quad { R }_{ eq }=19.55\Omega src=https://huaweicloudobs.ahjxjy.cn/4E893A5A3FC46CE66EE93085D7486D0C.png style=vertical-align: middle;/>
【单选题】
1-3计算题图1-3所示各电路中电流源发出的功率。<img src=https://huaweicloudobs.ahjxjy.cn/8B29EEE1EF501AFD1E7037D07BE20A36.png title=捕获11.PNG alt=捕获11.PNG/>
①
<img class=jc-formula data-tex=25W src=https://huaweicloudobs.ahjxjy.cn/DEA18E85D48F211F5E5C905BB07FD83F.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=-25W src=https://huaweicloudobs.ahjxjy.cn/43970F8B6205306D3B53EB2DCEF0947A.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=50W src=https://huaweicloudobs.ahjxjy.cn/16E082C9EFA690A9DA8458CE1DC25098.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=-50W src=https://huaweicloudobs.ahjxjy.cn/871611B00E33A8311515498EC93EB91B.png style=vertical-align: middle;/>
【单选题】
2-5应用支路电流法求题图2-5所示电路中的<img class=jc-formula data-tex=U,\quad I src=https://huaweicloudobs.ahjxjy.cn/F41246A600904648DD90E01ADC276B58.png style=vertical-align: middle;/>。<img src=https://huaweicloudobs.ahjxjy.cn/641D2F5E65124565930B5D541C293231.png title=2-5.PNG alt=2-5.PNG/>
①
<img class=jc-formula data-tex=U=-2V,\quad I=-\frac { 1 }{ 3 } A src=https://huaweicloudobs.ahjxjy.cn/6BE1B486768573B08FC50C2F2F162CC2.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=U=-2V,\quad I=\frac { 1 }{ 3 } A src=https://huaweicloudobs.ahjxjy.cn/C3D09A73F0D2667B46D5798B1798A1DB.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=U=2V,\quad I=-\frac { 1 }{ 3 } A src=https://huaweicloudobs.ahjxjy.cn/120FCDE7249D411CD6496E8F80C9A262.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=U=2V,\quad I=\frac { 1 }3A src=https://huaweicloudobs.ahjxjy.cn/BA0416C454DECBC4AB63D683D5A143BE.png style=vertical-align: middle;/>
【单选题】
3-5题图3-5所示电路中，当RL为何值时可以获得最大功率，并求此最大功率。<img src=https://huaweicloudobs.ahjxjy.cn/92950B48D367E5D9334D311921498508.png title=3-5.PNG alt=3-5.PNG/>
①
<img class=jc-formula data-tex={ R }_{ L }=12\Omega ,\quad { P }_{ max }=12W src=https://huaweicloudobs.ahjxjy.cn/EB6B0A48A10675BE39E5C61B2841CEFA.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex={ R }_{ L }=12\Omega ,\quad { P }_{ max }=6W src=https://huaweicloudobs.ahjxjy.cn/AD6B7F1C5284CFE45005FC2BF595E443.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex={ R }_{ L }=6\Omega ,\quad { P }_{ max }=6W src=https://huaweicloudobs.ahjxjy.cn/482E79EB3133FD25A857ADCCF041D339.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex={ R }_{ L }=6\Omega ,\quad { P }_{ max }=12W src=https://huaweicloudobs.ahjxjy.cn/AACA307717D75F1E3F5E1EAB74B31775.png style=vertical-align: middle;/>
【单选题】
3-2 利用叠加定理计算题图3-2所示电路中电流源的端电压<img class=jc-formula data-tex=U src=https://huaweicloudobs.ahjxjy.cn/962F27352933EAF625F51E74FF866874.png style=vertical-align: middle;/>和独立电压源的电流<img class=jc-formula data-tex=I src=https://huaweicloudobs.ahjxjy.cn/CFE0FB65A01B097AD2957AEA6E52A94D.png style=vertical-align: middle;/>。<img src=https://huaweicloudobs.ahjxjy.cn/596160DFA3F92CE52878E78F84A20349.png title=3-2.PNG alt=3-2.PNG/>
①
<img class=jc-formula data-tex=U=-8.33V,\quad I=1.67A src=https://huaweicloudobs.ahjxjy.cn/5A78F8C378EF8FE312941774E4DA7852.png style=vertical-align: middle;/>
②
<img class=jc-formula data-tex=U=8.33V,\quad I=1.67A src=https://huaweicloudobs.ahjxjy.cn/097ED1E08339C2546B69608FBDF4C32A.png style=vertical-align: middle;/>
③
<img class=jc-formula data-tex=U=8.33V,\quad I=-1.67A src=https://huaweicloudobs.ahjxjy.cn/F47F43E57CD209D8C7894B8A3F27C58A.png style=vertical-align: middle;/>
④
<img class=jc-formula data-tex=U=-8.33V,\quad I=-1.67A src=https://huaweicloudobs.ahjxjy.cn/8190E31C338FF76F9588B3ECA7134E74.png style=vertical-align: middle;/>