单项选择题

The present selection has apparently been preceded by some explanation of ______.

A．some experiments with color pigments
B．the nature of color
C．the color properties of various surfaces
D．the mechanism of the eye's adaptation to color
<上一题 目录 下一题>
热门 试题

单项选择题
Lack of technological progress in the ancient and medieval worlds was primarily due to the absence of ______.
A．natural resources
B．inventive ability
C．people's desire for the "better things of life"
D．proper social organization
单项选择题
Whether a colored object would, on two viewings separated in time, appear to the viewer as similar or different in color would depend mostly on ______.
A．the color mechanism of the eye in use at the time of each viewing
B．whether the object was seen in artificial or natural light
C．what kind of viewing had immediately preceded each of the viewings
D．the individual's power of lateral adaptation
相关试题