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三长一短选短,三短一长选长三长一短选短,三短一长选长三长一短选短,三短一长选长
两长两短选B,参差不齐选C两长两短选B,参差不齐选C两长两短选B,参差不齐选C
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B和C的选项正确率通常较高,望周知B和C的选项正确率通常较高,望周知B和C的选项正确率通常较高,望周知