答案及解析：[多选题]What can we learn from the introduction about color? AThere are differences between objective sensat

问题：

[多选题]What can we learn from the introduction about color?
AThere are differences between objective sensation and subjective color perception.
BColor constancy means color perception system can insure the color perceived from objects remain relatively constant.
CThe equipment viewing cabinet can show different illumination.
DWe don’t have any good method to do color proof.