挂牌汇率是由银行挂牌进行外汇兑换的汇率，分为买入汇率、卖出汇率和中间价。
我们是根据每天早上中国银行发布的汇率挂牌的。
We list the exchange rate issued by the People's Bank of China every morning.
各银行挂牌的美元买卖汇率不得超过基准汇率上下0.15％，港币、日元买卖汇率不得超过基准汇率的1％。
Under such contracts the exchange rate of the US dollar was required to be within 0.15 per cent of the reference rate, whereas for the HK dollar and Japanese yen, the permitted range was 1 per cent.
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