Mr. Brown is _____ a teacher to us; we look on him as our friend. [ ]

A. more than

B. more or less

C. less than

D. more and more

钢筋混凝土板中的分布钢筋是垂直于板内主筋方向上布置的，主要为满足（）要求而设置的。

A、施工

B、加工

C、构造

D、荷载