This improvement meant that the exposure time was reduced to only a______of second in brig
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This improvement meant that the exposure time was reduced to only a______of second in bright light.
A.fracture
B.number
C.segment
D.fraction
请帮忙给出正确答案和分析,谢谢!
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正确答案:D
fraction“小部分,一点”;fracture“骨折,折断”;number“数字”,anumberof后面接复数名词;segment“段,片,节,部分”,用在句中明显不合句意。
