单项选择题
A.22.5t B.22.5×(1±3%)t C.23×(1±3%)t D.(23+2)t
A.1470kW B.2427kW C.2940kW D.3680kW
A.电机启动 B.液压启动 C.惰性启动 D.复合启动
A.120km/h B.132km/h C.160km/h D.170km/h
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