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Q7: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7291/.jpg" alt=" A broad spectrum
Q10: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7291/.jpg" alt=" The left part
Q19: A farsighted person uses glasses to read.
Q21: A series RLC circuit is driven by
Q41: A 26-year-old biologist makes a trip to
Q53: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7291/.jpg" alt=" The figure shows
Q55: An easy way to distinguish whether the
Q80: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7291/.jpg" alt=" In the above
Q101: In a mass spectrometer, chlorine ions of
Q132: The energy of the nth level in