攒尖建筑
参考答案:
建筑物的若干坡屋面在顶部交汇成一点形成尖顶,称为攒尖建筑。攒尖建筑平面为正多边形,如正三边形、正四边形、正五边形、正六边形、正八边形、圆形等。
—Will you please tell me _________?
—Sure. Her house is across from the supermarket. [ ]
A. where Mary lives
B. what is Mary doing
C. where does Mary live
D. what Mary is doing
有机硫水解反应温度受温度影响较大,温度()时,有利于水解。
A.高
B.低
C.不变
D.较低