结汇是指收入所有者将外汇卖给外汇指定银行，外汇指定银行根据交易行为发生之日的（）汇率付给等值人民币.
A、人民币
B、美元
C、欧元
D、港币
参考答案：A
如果铁路在货物运到期限届满60天内，未将货物交付收货人时，收货人无须提出证据就可认为货物已经灭失。( )
Why are mobile phones popular in China, according to the speaker a. They are considered as fashionable items. b. They keep people closer to each other. c. They are more convenient to users than fixed phones. d. They are considered time-saving devices.
