当土壤允许承载力为115kPa时，那么在土壤上允许建筑层数为( )。
A．1～2层
B．2～3层
C．3～4层
D．5～6层
参考答案：B
Dear students, please read every sentence carefully. ___ you are, ____ mistakes you’ll make.
A．The more carefully, the fewer
B．The more careful, the less
C．The more carefully, the less
D．The more careful, the fewer
混凝土的力学性能有哪些？
