我行系统使用外汇汇率是实时汇率，那么客户办理现汇结汇时的标准汇率是（）
A、现汇买入价
B、现汇卖出价
C、中间价
D、现钞买入价
参考答案：A
--- Is he said _______ his car lost?
--- Yes. He was so foolish _______ leave his car unlocked.[ ]
A. that; that
B. to have; for him to
C. to have; to
D. to have had; as to
操作系统是计算机系统中的
A．主要硬件
B．系统软件
C．工具软件
D．应用软件
