先出一个题目:某日,你下班后等公交车,半个多小时过去了,它还没有来。这个时候,你的同事小白也过来等车。他看到这种状况,就提议你们一起打车回家。你觉得这是个好主意,但是,细想下来才发现,自己的方向和小白的恰好相反,一起走是不可能了。小白自己打车走了。你呢?如果从这里打车回家要花30元钱,乘公交车只需要2元钱,你会如何!择? First out a topic: one day, you get off after get off work waiting for the bus, more than half an hour later, it has not come yet. At this time, your colleague Xiaobai also came and waited for a ride. He saw this situation, it is proposed that you take a taxi home. You think this is a good idea, however, think down to find that their own direction and the opposite of the white, go together is impossible. White himself took a taxi away. How about you? If you take a taxi home from here to spend 30 yuan, take the bus only 2 yuan, how would you choose?