氨茶碱
A．能拮抗腺苷导致的支气管痉挛B．钙拮抗剂C．减少cGMP浓度D．抑制肥大细胞和嗜碱粒细胞释放生物活性物质
参考答案：A
As is known to all, the United States uses energy as the whole of Europe.[ ]
A. as twice
B. twice much
C. twice as much
D. twice more
某柱下独立基础的底面尺寸为1.6m×2.4m。上部结构传至基础顶面的荷载准永久组合值Fk＝600kN，基础埋深d＝2.0m，其余如下图所示。
确定用于地基变形计算的基底中心附加压力p0最接近于（）kPa。
A.156.25
B.158.25
C.176.35
D.196.25
