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 too short from frmu6 i .tw5jhmbq07m-zg1 +ucz a-w6riont to back, this gives r je v-w7,ga; ek3zap2nise to a vision defect that can be corrected by usin7aep,-a 32eg vwzknj;g
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
| 
