2. 考研
  3. Lighting levels are carefully controlled to fall within an acceptable level for optimal reading convenience.

Lighting levels are carefully controlled to fall within an acceptable level for optimal reading convenience.

admin2013-12-03  19
问题 Lighting levels are carefully controlled to fall within an acceptable level for optimal reading convenience.
选项 A、ideal
B、required
C、optional
D、standard
答案A
解析 ideal“理想的，完美的”；required“必需的，要求的”；optional“随意的，可选择的”；standard“标准的，权威的”。调节灯光的照明度以方便怎么样的阅读，可以推测optimal意为“最佳的，理想的”，ideal与之意思相近，故选A。
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