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Just as the short strings of a violin cannot produce the deep, long-wavelength notes of a double bass, so photons—which are vibrations not of strings but of electromagnetic fields—are ________ by the physical characteristics of objects that conduct electricity.
- A.conveyed
- B.bound
- C.amplified
- D.thwarted
- E.transmitted
- F.circumscribed
B,F显示答案
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以上解析由 考满分老师提供。
