常见电梯曳引比为().A.单绕 B.复绕 C.三绕 D.1:1或2:1 发布时间:2017-02-20 16:38 │ 来源:www.tikuol.com 题型:单项选择题 问题: 常见电梯曳引比为().A.单绕B.复绕C.三绕D.1:1或2:1
题型:单项选择题 —Zhao Rui, it's said that many famous singers will come to Yangzhou on April 18th. How about watching the evening show there? —_______! Let's ask Huang Tao to go with us. [ ]A. Best wishes B. Sounds great C. Good luck D. That's OK 查看答案
题型:单项选择题 在评估经济效益不能直接估算的自然资源方面,( )特别适用于对自然保护区或具有唯一性特征的自然资源的开发项目的评估。A.疾病成本法B.生产力变动法C.机会成本法D.内涵资产定价法 查看答案