()3.Thesedayschildrenhavepressureaboutschool.A.toomanyB.toomuchC.muchtooD.somany
( ) 3. These days children have____ pres sure about school.
A. too many B. too much
C. much too D. so many
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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(8x的n+3方+x的n+2方)(3/4x的n次方+x的n-1方)(a-½)(a+1/3)-(a- 2020-05-14 …
阅读第(1)题的解题过程,再做第(2)题:(1)已知x+x^-1=3,求x^3+x^-3的值,因为 2020-05-17 …
已知(a,b)=12,[a,b]=180：（1）a=60,b=36;(2)a=12,b=180正确 2020-07-16 …
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 …
()3.Thesedayschildrenhavepressureaboutschool.A.to 2020-07-25 …
同底数幂的除法a的3次方÷a的3次方=1?a的3次方÷a的3次方=a的（3-3）次方=0?1还是0 2020-07-30 …
a^3+b^3+c^3-3abc=0=(a+b)^3+c^3-3a^2b-3ab^2-3abc,我 2020-07-31 …
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 …