在软土路基上直接填筑路堤，水面以下部分可用（）填筑。
A.一般土
B.轻质材料
C.透水性好的填料
参考答案：C
梵•第根的代表作是（）。
The cost management plan has all of the following characteristics EXCEPT: （）.
A．It is based on the project cost estimates, and is separate from the project pla
B．Can establish variance thresholds for costs or other indicator
C．May be formal or informal, highly detailed or broadly frame
D．Documents the cost management processes and their associated tools and technique
