本题目来源于试卷: Physics Unit25: Optical Instruments，类别为 通用国际物理
[单选题]
If the human eyeball is too long from txi.3 kmb -zk4fcjqs4b5 ,jblkb,vv5zc *+ tl0ront to back, this gives rise to a vision defect that can be corrected by us*vtq0z l+c k5lvcsb j4bjb5,,ing
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: B
本题详细解析:
暂无
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