题目解析:
定位到最后一句: At the same time, the image that the spectator looked at expanded from the minuscule peepshow dimensions of 1 or 2 inches (in height) to the life-size proportions of 6 or 9 feet.表达出的意思是:早期西洋镜影像比大荧幕影像要小得多,前者只有1-2英寸,而后者是6-9英尺的实物大小。正确答案:A。