when passing the bus station on my way home, I found out a little girl alone crying. Obviously, she way losing, looking for her mother. I came up and asked her why. When asked where her mother was, she just shook head and kept crying. Then I took her to the station broadcasting room for a help.” Anyone who lost a child please come to our broadcasting room…” which was soon heard again and again. Minutes later, a worrying mother came. The girl ran to her mother happy, tears still in eyes. The mother was very thankful and asked for my name. With smile, I answered,” I’m only a League Member.” I have just done that a League member should do. It’s my duty.”

30～32 如题30～32图所示，某窗间墙长1500mm，墙厚为370mm；中部支承钢筋混凝土梁的截面尺寸h_c×b=550mm×250mm，梁端实际支承长度为240mm，上层墙体传来轴向力设计值 N_u=150kN，梁端支承反力设计值N₁=100kN。

当窗间墙采用MU10烧结黏土砖、M5混合砂浆砌筑，梁下钢筋混凝土垫梁，垫梁高度为180mm，宽度为240mm，采用C20混凝土，梁端下砌体局部受压承载力计算式（N₀+N₁）≤2.4δ₂b_bh₀与下列（）项相接近

A．130.46kN＜258.51kN

B．130.46kN＜206.81kN

C．250kN＞258.51kN

D．250kN＞206.81kN