Now everybody, please turn to Page and look at the picture.
A:Fifth; fifth
B:Nine; ninth
C:Nine; nineth
D:Fourth; four
若分式x2-1x+1的值为零,则x的值为( )
职业
自耕农和地主
佃农
工场主
商人
占人口比例
24%
36%
30%
10%