【单选题】We learn from the conversation that Freddy is ______ Mary's ideas.
【单选题】Freddy was such a troublemaker that the teacher put his desk in a far corner to isolate him from the other students.
【单选题】isolate Freddy was such a troublemaker that the teacher put his desk in a far corner to isolate him from the other students.
【单选题】【例题•单选题】2009年12月31日,甲公司购入一台设备并投入使用,其成本为25万元,预计使用年限5年,预计净残值1万元,采用双倍余额递减法计提折旧。假定不考虑其他因素,2010年度该设备应计提的折旧为( )万元。(2011年)
【简答题】什么是流量?什么是平均流速?它与实际流速有什么区别?