CIR出入库检测“自检”需要检测9项目，期中第9项是检测（）。
A、退出库检状态
B、电池
C、450MHZ同频通话
D、卫星定位单元
参考答案：B
中医学认为，“元气”运行的通道是（）
A.经脉
B.脏腑
C.腠理
D.三焦
E.血脉
The main function of a processor is to (68) and carry out instructions which usually consist of operation and (69) . The term to measure the speed of the processor is called a Megahertz (MHz), which means million (70) per second.
A．operand
B．data
C．object
D．member
