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A pencil sitting in a glass of water appears bent...
Single Choice
A pencil sitting in a glass of water appears bent because light bends as it passes from water to the surrounding air and vice versa. This is an example of what process?
A.
Reflection
B.
Refraction
C.
Diffraction
D.
Absorption
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[问答题] Einstein received the Nobel Prize for his analysis of what physical phenomenon?
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[单选题] A student makes the following conjecture: “If a quadrilateral is a rectangle, then it must be a para...
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