题目内容
The Metro Trains of Chengdu Metro Line 3 is Type B and its classification is 6-car unit.
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The Metro Trains of Chengdu Metro Line 5 is Type B and its classification is 8-car unit.
The Metro Trains of Chengdu Metro Line 1 is Type A and its classification is 6-car unit.
The Metro Trains of Chengdu Metro Line 2 is Type A and its classification is 8-car unit.
The Metro Trains of Chengdu Metro Line 4 is Type B and its classification is 6-car unit.
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