A:1
B:-1
C: 1或-1
D:没有
苏洵在《田制》中指出:“耕者之田资于富民……而田之所入,己(富民)得其半,耕者得其半。”这反映的是
—I can't agree more. ____________. There is no short cut.
解方程2x+13-10x+16=1时,去分母、去括号后,正确结果是( )