DF8型内燃机车的自重是()t。A、128B、130C、131D、139
DF8型内燃机车的自重是()t。
- A、128
- B、130
- C、131
- D、139
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单选题DF8型内燃机车的换长为()t。A1.7B2.0C1.8D1.9