BIM应用过程中，（）是最基础的技术资料。
A.BIM概念
B.BIM模型
C.BIM三维动画
D.BIM工程量统计
参考答案：B
________full preparations, we decided to put off the meeting till the next week. [ ]
A. We did not make
B. We had not made
C. Not having made
D. Having not made
投资谈判
