实行状态修的基本条件是什么？
参考答案：
设备具有有效的自检、检测、报警、冗余等功能和手段，能够随时掌握该设备工作状态及变化趋势，预防可能出现的故障。
单句改错。
( ) 1. Would you like any mooncakes? No，thanks.
A B C D
( ) 2. We have a lots of homework to do every day.
( ) 3. Simon likes chocolates eggs very much.
( ) 4. Christmas is on December 25th on winter.
( ) 5. People give children sweets with a treat.
MPOS产品的优势是（）
A.移动收款
B.小巧便携
C.功能延伸
D.风险控制强
