A:3
B:116
C:± 3
D:以上皆非
不等式1x-1<1的解集记为P,关于x的不等式x2+a-1x-a>0的解集记为q,若p是q的充分不必要条件,则实数a的取值范围是( )
_________ only 20 minutes to go before the train left, I felt uneasy in the taxi to the railway station.