微机保护装置由软件进行的硬件的自检内容主要有()。
A、RAM区读写检查
B、EPROM求和检查
C、开关量出口通道检查
D、数据采集系统检查
参考答案:A, B, C, D
I was just talking to Margot when Jackson ____.
A.cut in
B.cut down
C.cut off
D.cut up
I could look after _____when I was six.
A.herself
B.myself
C.yourself
D.himself