The lower__in a room,the more slowly our eyes foce.
The lower__in a room,the more slowly our eyes foce.
A,the level of lighting.B,light level.C,leveling of light.D,lighting is level我想知道这题的答案今天想了很久.还是有点疑惑,希望那位高手给我答案,
A,the level of lighting.B,light level.C,leveling of light.D,lighting is level我想知道这题的答案今天想了很久.还是有点疑惑,希望那位高手给我答案,
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