挑战习题
1/5单选题
难度:

1.一个长方形的面积为x2-2xy+x,长是x,则这个长方形的宽是(    )
A x-2y
B x+2y
C x-2y-1
D x-2y+1
提示1:
IOeUsemVv+aWueW9oumdouenr+WFrOW8j+efpe+8jOaxgumVv+aWueW9oueahOWuve+8jOWImeeUsemdouenr+mZpOS7peWug+eahOmVv+WNs+W+ly4=
正确答案:RA==
6Kej77ya77yIeDxzdXA+Mjwvc3VwPi0yeHkreO+8icO3eDxicj49eDxzdXA+Mjwvc3VwPsO3eC0yeHnDt3greMO3eDxicj49eC0yeSsxLiA8YnI+5pWF6YCJ77yaRC4g