OurteacheroftengivesussomeaboutEnglish.()A.advices;learnB.advice;learningC.advice;learn
Our teacher often gives us some_____ about _____ English.( )
A. advices; learn
B. advice; learning
C. advice; learn
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main(){unionEXAMPLE{struct{intx,y;}in;inta,b;}e;e 2020-06-12 …
用以下英文宇母填在上a,a,a,a,a,a,b,e,e,d,e,e,e,e,e,e,f,g,g用以 2020-06-24 …
老师我有点不明白A(A^2-4A+3E)=E怎么知道A就可逆了?E+A^3=(E+A)(E-A+A 2020-06-29 …
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A,B均为三阶可逆矩阵,且A^3=0,则A:E-A,E+A均不可逆?B:E-A不可逆但E+A可逆? 2020-07-20 …
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