信用卡公司的汇率不是你看到的当日市场汇率是一个常识呀!想汇率损失最小化只能选择带上英镑-人民币双币卡!
银联汇率http://en.unionpay.com/front_ExchangeRate.html
V家汇率http://usa.visa.com/personal/card-benefits/travel/exchange-rate-calculator.jsp
M家汇率https://www.mastercard.com/global/currencyconversion/index.html