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问题
判断题
行车速度v≥3.5m/s时,选用的道岔曲线半径不得小于通过车辆最大轴距的12倍。
答案
参考答案:错
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提示作文 (10分)
请结合以下材料,以“Great changes in my hometown”为题,写一篇80个词左右的短文。
Road
Food
Clothes
Education
Activities
In the past
narrow
little
few
No chance to go to school
Very few
Nowadays
wide
Have a healthy diet
Many different kinds of clothes
good
More kinds like drawing dancing……
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问答题 简答题
DK29型落下孔车经段修后,在正常运用情况下相关配件质量保证期是如何规定?
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