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Jessica2022-06-06 14:08:05
同学你好
题目中说:In order to encourage business, the bus company has just announced package deals through which a customer can buy three trips for the price of two. 做3次巴士只需要付2次巴士的费用,一次巴士¥40,2次巴士$80;
乘坐一次火车60元,因此,4次出行一共是$80+$60=$140
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