通过生产要素的优化配置、合理使用、动态管理,有效控制实际成本,属于施工成本管理的( )。
A) 组织措施B) 技术措施C) 经济措施D) 合同措施
参考答案:A
The first time I saw him, what impressed me most were his waistline _____ nearly 3 Chinese chi and his obesity ______ 210 jin.
A.measured ; weighed
B.measuring; weighing
C.measured; weighing
D.measuring; weighed
()是视色素的组成成份,与维持正常视觉功能有着极其密切的关系。如果肌体缺乏此种维生素,对光暗适应能力将降低,最终导致夜盲症。
A.维生素A
B.维生素B
C.维生素C
D.维生素D