计算期相同的互斥方案，常用的经济效果评价方法有( )。 A．增量投资回收期法 B 发布时间：2017-04-18 23:07 │ 来源：www.tikuol.com 题型：单项选择题 问题： 计算期相同的互斥方案，常用的经济效果评价方法有( )。A．增量投资回收期法 B．综合总费用法C．年折算费用法 D．净年值法
题型：单项选择题 完形填空 A Newspaper Boy Bill 1 fourteen years old.He is a student 2 Grade Three at a high school.He 3 a sister,4 name is Ann.She is at school,too.Their father is a worker.But he is out of work(失业)now.Their mother 5 in a small shop.Bill has a part-time(业余)job.He is a newspaper boy.Bill,Ann and their parents 6 in an old house in a small town.Every morning Bill must 7 early and deliver(递送)newspapers from door to door.In winter he must leave his house before dawn(黎明)and it is very 8 outside.But the job means a lot to him.Bill has seventy customers(顾客)now,and he hopes to get 9.He wants to help his parents.He also 10 to save(积攒)money to go to college(上大学).( )1.A.be ( )2.A.of ( )3.A.have ( )4.A.she ( )5.A.works ( )6.A.stay ( )7.A.gets up ( )8.A.hot ( )9.A.many ( )10.A.likes B.am B.at B.has B.hers B.work B.come B.get upB.warm B.more B.thinks C.is C.fromC.there is C.herself C.to work C.live C.to get upC.cool C.most C.wants D.are D.on D.there are D.her D.working D.go D.getting up D.cold D.much D.works 查看答案