【单选题】Our teacher _____ this picture on the wall yesterday. [ ]
【单选题】Mr. Black _____ the nail with a hammer on the wall and hung a family photo on it. [ ]
【简答题】人眼的明视距离为 ,人眼最敏感的光长为 。
【单选题】Following the guide, we went into a house, _________ wall hung a picture of Einstein.
【简答题】The more we look at the painted picture hung on the wall, ______. A) we like it less B) the less we like it C) less we like it D) we less like it
【单选题】He hammered a______into the wall and hung a small picture from it