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 eyeballx*;yby 48(falbo3z vfr*eb7y5e)vl/p + s n oi60wyw0(y n /hc kvprnsqz xsw(98e11hf mv7s1 is too short from front to back, this gives rise to a vision dh16y8vex0/cnmw0z w( v1p71nws9(s fr hqyskefect that can be corrected 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:
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