来自任春玲的问题
【writethefollowinginalgebraicform.(a)thesumofaandsis3.】
writethefollowinginalgebraicform.
(a)thesumofaandsis3.


【writethefollowinginalgebraicform.(a)thesumofaandsis3.】
writethefollowinginalgebraicform.
(a)thesumofaandsis3.
额…………
难道是
a+s=3?
好像是吧求证实