在施工成本管理的任务中,根据成本信息和施工项目的具体情况,运用一定的专门方法,对未来的成本水平及其可能发展趋势作出科学估计的是()。 ["施工成本计划","施工成本预测","施工成本分析","施工成本控制"]
下列项目中,既可以采用费率方式又可以采用人工计价的是()。 ["A.软件服务 ","B.软件开发 ","C.商用套装软件实施 ","D.以上答案均不对"]
明清时期,“苏(州)城花素缎机工业,向分京苏两邦,各有成规,不相搀越。……(技艺)均系世代相传,是以各归主顾,不得紊乱搀夺。”材料表明当时的苏州()。 ["纺织业由政府专营","手工业者缺乏人身自由","技术垄断成为行规","私营手工业分工明确"]
在Excel中不能给文字添加哪种文字效果:() ["删除线","双删除线","上标","下标"]
During an attempt to 'scp' between two hosts, an error indicating PRNG is not seeded is displayed. What is the likely cause of the error?() ["The sshd user id is locked.","The \/var\/empty directory needs to be created.","PRNG is set to 'no' in the \/etc\/ssh\/sshd_config file.","The permissions on \/dev\/random and \/dev\/urandom are incorrect."]
列举变桨系统所监测的故障