3.IyoutocometomybirthdaypartynextFriday.A.hopeB.expectC.enjoyD.afford
3. I you to come to my birthday party next Friday.
A. hope B. expect C. enjoy D. afford
数集A满足条件:若a∈A则(1+a)/(1—a)∈A(a≠1).若1/3∈A,求集合中的其他元素. 2020-04-06 …
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3.IyoutocometomybirthdaypartynextFriday.A.hopeB.e 2020-05-13 …
已知(a,b)=12,[a,b]=180:(1)a=60,b=36;(2)a=12,b=180正确 2020-07-16 …
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计算:(a/a^3+a^b+ab^2+b^3)(b/a^3-a^2b+ab^2-b^3)+(1/a 2020-07-21 …
正确率要达到90%以上1.(-2)^101+(-2)^100=2.a^3·(-a^2)^3÷a^5 2020-07-22 …
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我问过这样一道题:设a.b为有理数,且|a|>0,方程||X-a|-b|=3有三个不相等的解,求b 2020-08-02 …
1.已知a*x^3=b*y^3=c*z^3且1/x+1/y+1/z=1求证(a*x^2+b*y^2+ 2020-10-31 …