It seemed that the boy who you _____ didn’t show any interest in what he was reading at all.

A．were made to study

B．made to study

C．made study

D．were making to study

排烟窗应设置在排烟区域的顶部或外墙，当设置在外墙上时，排烟窗应在储烟仓以内或室内净高度的（）以上，并应沿火灾烟气的气流方向开启；根据烟气上升流动的特点，排烟口的位置越高，排烟效果就越好，因此排烟口通常设置在墙壁的上部靠近顶棚处或顶棚上。

A.1／2

B.1／3

C.1／4

D.2／3