2. 外语
  3. What does the passage mainly discuss? According to the passage, l/25 second is the minimum amount of time required for the

What does the passage mainly discuss? According to the passage, l/25 second is the minimum amount of time required for the

admin2005-01-30  21
问题 What does the passage mainly discuss?
According to the passage, l/25 second is the minimum amount of time required for the
选项 A、recording of an image on film
B、generation of artificial light
C、creation of a photographic emulsion
D、human eye to react to light
答案D
解析
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