下面可用于应用监控的是（）
A.OpenIMIS
B.MyAME
C.OCMS
D.AME
参考答案：B, D
盈利100元记作+100元，那么-50元的意义是______．
It’s widely known that first aid is important and you can save lives if the right action is taken.
A．terribly
B．hardly
C．scarcely
D．rarely
