问题详情:
光垂直入*到平面镜上,反*角为····································································· ( )
A.0° B.30° C.45° D.90°
【回答】
A
知识点:未分类
题型:未分类
问题详情:
光垂直入*到平面镜上,反*角为····································································· ( )
A.0° B.30° C.45° D.90°
【回答】
A
知识点:未分类
题型:未分类