塔机格构式钢柱的外边缘至承台边缘的距离,以及钢柱下端基桩的外边缘至承台边缘的距离不小于()mm。
A.100mm
B.200mm
C.500mm
D.800mm
参考答案:B
一个正方形的面积为3m2,它的周长是( )m。
-----What did you do with the order?
----- I handed it to _____ I think is in charge of sales.
A.whoever
B.whomever
C.who
D.whom