一辆后轴驱动汽车的总质量2152kg,前轴负荷52%,后轴负荷48%,主传动比i...

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一辆后轴驱动汽车的总质量2152kg,前轴负荷52%,后轴负荷48%,主传动比i0=4.55,变速器传动比:一挡:3.79,二档:2.17,三档:1.41,四档:1.00,五档:0.86。质心高度hg=0.57m,CDA=1.5m2,轴距L=2.300m,飞轮转动惯量If=0.22kg·m2,四个车轮总的转动惯量Iw=3.6kg·m2,车轮半径r=0.367m。该车滑行数据的拟合直线v=19.76-0.59T,v的单位km/h,T的单位为s,直接档最大加速度 =0.75m/s2(ua=50km/h)。设各档传动效率均为0.90,求:

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【判断题】磁量子数 m =0 的轨道是 s 轨道。

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In a library.

In a bookstore.

In the classroom.

In a department store.

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【判断题】In some dictionaries, the stylistic features are clearly marked as "formal", "informal","literary","archaic", slang and so on.

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错误

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【单选题】听力原文：W：Excuse me．I want some dictionaries. Where can I find them? M：The regularly-priced ones are here. And on the table on the corner of the room, we have some on discount. Q：Where does this conversa...

In a library.

In a bookstore.

In the classroom.

In a department store.

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【多选题】微信最佳推送时间下对推送内容的要求有()

内容不能太多,不要浪费客户太多时间

文章质量一定要高

文章篇幅一定要够长

推送的文章数量一定要多

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【单选题】将VB编制的程序保存在磁盘上,至少会产生( )文件。