小测验：选择正确的单词

1. A sharp photographic image.
   清晰的影象
2. Optical image: Image formed digitally on a video screen.
   光学影像:在荧幕上以数码形式构成的影像。
3. The heroic image is stamped in [on] our memory.
   这一英雄形象铭刻在我们心中。
4. The Camera is the basic tool for recording light images.
   照相机是记录以光成图像的基本工具。
5. The name Sahara conjures up images of a desert of aridity.
   "撒哈拉""这个名字使人想起干旱的沙漠情景。"

　2个名词解释