博物馆的学术委员会由馆内专家和()组成。
A.馆外专家
B.科研人员
C.馆长
参考答案:C
In general,a typical ()model is composed ofseveral phases, such as requirements analysis phase, general/detailed design phase, implementation phase, system acceptancetesting phase.
A.waterfall
B.incremental
C.spiral
D.prototyping
某施工机械年工作320台班,年平均安拆0.85次,机械一次安拆费28000元,则该施工机械的台班安拆费为( )元。(结果保留两位小数)
A.177.50 B.164.38 B.102.94 D.74.38