单选题:设备的寿命中,( )是有形磨损和无形磨损共同决定的。 题目分类:物业经营管理 题目类型:单选题 号外号外:注册会员即送体验阅读点! 题目内容: 设备的寿命中,( )是有形磨损和无形磨损共同决定的。 A.自然寿命 B.维护寿命 C.经济寿命 D.技术寿命 参考答案: 答案解析:
The noise killing syrstem is not yet popular mainly because The noise killing syrstem is not yet popular mainly becauseA.it is still being t 分类:物业经营管理 题型:单选题 查看答案
What does the robot look like? What does the robot look like?A.A human being. B.A spider. C.A truck. D.A drill. 分类:物业经营管理 题型:单选题 查看答案