Physics Unit25: Optical Instrument (id: 8b833ace3)

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本题目来源于试卷: Physics Unit25: Optical Instrument，类别为 Generic Physics

[单选题]
A camera lens that acts like a telescope to magnify im;(9orj; .gay s7-hbn 9ogndxfagbn.)xs5bi;gqe cf9 2q i3af:m q j(d::ss mvl7es is referred to as a

A. normal lens.
B. telephoto lens.
C. wide-angle lens.
D. zoom lens.


参考答案:  B


本题详细解析: 暂无