This improvement meant that the exposure time was reduced to only a______of seco

游客2025-03-20 22

问题 This improvement meant that the exposure time was reduced to only a______of second in bright light.

选项 A、fracture
B、number
C、segment
D、fraction

答案 D

解析 fraction“小部分，一点”；fracture“骨折，折断”；number“数字”，a number of后面接复数名词；segment“段，片，节，部分”，用在句中明显不合句意。

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Thisimprovementmeantthattheexposuretimewasreducedtoonlya______ofseco