Thecounty，inthenorthofShanxi，hasahistoryofmorethan1，400years．（）A.locatedB.tobelocatedC.beinglocatedD.locating
The county，________ in the north of Shanxi，has a history of more than 1，400years．（ ）
A. located
B. to be located
C. being located
D. locating
已知A=｛x丨丨x-a丨=4｝,B=｛1,2,b｝,是否存在实数a,使得对于任意实数b,都有A⊆B 2020-05-13 …
Thecounty，inthenorthofShanxi，hasahistoryofmoretha 2020-05-14 …
因式分解有很多方法,请仔细阅读一道因式分解题目的两种不同的分解方法：因式分解：a^3+3a^2-4 2020-05-23 …
a-4的相反数因为a-4的相反数是它们的差的负数,所以把a-4看成一个数,就是-(a-4).-(a 2020-06-12 …
(a+4)(a+3)=();(a+4)(a-3)=();(a+4)(a+3)=();(a+4)(a 2020-07-09 …
Thecountry,---inthenorthofshanxi,hasahistoryofmor 2020-07-17 …
已知：4/x(x^2+4)=A/x+Bx+C/x^2+4,求：A=?B=?C=?4/x(x^2+4 2020-07-21 …
已知a、b属于R+,且a不等于b,求证：a4+b4大于a3b+ab3a^4+b^4-a^3b-ab 2020-07-30 …
（走向成功（40）)4,设ab≠0,a^2+b^2=1,如果x=（a^4+b^4）/(a^6+b^6 2020-11-01 …
当a=10时，求(a−4)2-(a−11)2的值，有甲、乙同学分别这样解答：甲：原式=(10−4)2 2020-11-07 …