通信电源集中监控管理系统的功能可分为()功能,()功能,()功能,()功能以及()功能等五个方面。
参考答案:监控;交互;管理;智能分析;帮助
Walter offered us a lift when he was leaving the office, but our work ______, we didn’t accept the offer.
A.not being finished
B.having not been finished
C.had not been finished
D.not having finished
正常分层注水井每()测试1次,分层测试资料使用期限不超过()月。