曲线
的弧长S=______.
参考答案:[*]
解析:[*]
Two ______ trees have been planted along the lake since 1998.
A.thousands of
B.thousand of
C.thousands
D.thousand
某工程采用工料单价法计价程序,以直接费为计算基础。已知该工程直接工程费为8000万元,措施费为500万元,间接费率为12%,利润率为4%,计税系数为3.41%,则该工程的含税造价为( )万元。
A.12821.03
B.12109.77
C.10238.42
D.9986.82