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【单选题】
编组列车(包括本务机甩挂)前,应根据调车作业计划明确分工,按计划提前检查列车编成时机后()情况,并报告调车长。
A.
关门车
B.
车辆
C.
车钩
D.
车列
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【简答题】现存的园林建筑主要是明清所建的苑囿和私家园林。主要分布在 、承德、 、岭南。
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【多选题】液压与气压传动的发展趋势是?
A.
小型化
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C.
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查看完整题目与答案
【判断题】免疫球蛋白Fab段是抗体与抗原结合的片断。
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