向不同的会计资料使用者可以提供编制依据不一致的财务会计报告。( )
参考答案：错
已知点P（﹣2，3）关于y轴的对称点为Q（a，b），则a+b的值是（ ）
(74) systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and (75) on the disk, and controlling peripheral devices such as disk drives and printers.
A．Operation
B．Operator
C．Operating
D．Operate
