题目

阅读表达，阅读下面的短文，并根据短文后的要求答题。 In May 2011，Gao Xiaosong，a Chinese musician，was caught in a car accident. When the police asked him to take a breath alcohol test(酒精呼气测试)，the result showed that he had drunk too much wine. Because of that，he is now in prison(监狱) and can’t be allowed to drive cars in China for five years. Nowadays, cars are very important in people’s life. More and more cars are going into Chinese families. However, lots of car accidents take place and many people are hurt or killed every year. Accord已知直线l1：x+2ay-1=0，与l2：（2a-1）x-ay-1=0平行，则a的值是（ ）A．0或1B．1或C．0或D．