本题目来源于试卷: Physics Unit25: Optical Instruments,类别为 国际高中通用物理
[单选题]
If the human eyeball is togae5. 8hpaz2 o5 vk,lbmbx0c2n4 t47q fhu2 j3t0 glceo short from front to back, this gives rise to a vision defect that can be co 452xt 3 4q0 ljlbmvght,f ebnu20k7ccrrected by using
A. convex meniscus eyeglasses.
B. concave meniscus eyeglasses.
C. cylindrical eyeglasses.
D. contact lenses, but no ordinary lenses.
E. shaded glasses (i.e., something that will cause the iris to dilate more).
参考答案: A
本题详细解析:
暂无
|