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lukax22 lukax22
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6 years ago
Black opaque or cardboard film mounts are preferred because they
 
  A) are less expensive and more readily available from the manufacturer.
  B) are more common and therefore easily shared with other practices.
  C) make placing films in the windows easier.
  D) block extraneous light to aid in interpretation.
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mngfmngf
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6 years ago
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lukax22 Author
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6 years ago
Thanks
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Yesterday
Thanks for your help!!
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2 hours ago
Good timing, thanks!
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