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Your company will be judged by the way you answer the telephone, so it is very important that you be courteous, happy, and ever so willing to help in the first contact you make with the caller.
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【简答题】一动点与M0(1,1,1)连成的向量与向量n=(2,3,－4)垂直，求动点的轨迹方程高等数学复旦大学出版第三版下册课后习题答案 一动点与M0(1,1,1)连成的向量与向量n=(2,3,-4)垂直，求动点的轨迹方程.
【简答题】高级程序设计语言的编译程序和解释程序均属于___软件。
【单选题】Due to slow backup response， an administrator installed a new driver for the SCSI card. After a server reboot the device is not working properly. Which of the following is the BEST course of action？（...
A.
Reboot the server and restore files using ASR.
B.
In Device Manager， locate the device， and click Roll Back Driver at the driver tab.
C.
Restore the driver from the previous backup tape.
D.
Go to Device Manager， locate the device， and click Restore Previous Driver at the driver tab.
【单选题】“我属龙。”用英语应该怎么说？
A.
I was a dragon.
B.
I belong to dragon.
C.
I was born in the year of the Dragon.
D.
I was in dragon year.
【简答题】图所示为某组合机构的传动简图。图中, 1 、 2 是一对标准直齿圆柱齿轮, n 1 =60r/min , Z 1 =30 , Z 2 =60 , m 1 =2mm ;凸轮 3 是半径为 45mm 、几何中心为 O 3 的圆盘,其转动中心 O 2 与齿轮 2 同轴, O 2 O 3 =15mm ,滚子半径为 5mm ; O 2 点、从动件 4 、 A 点、 C 点位于同一水平线上, L AB = L...
【判断题】一动点与 M 0 (1,1,1) 连成的向量与向量 n =(2,3 ,- 4) 垂直, 2 x +3 y - 4 z - 1=0即为动点 M 的轨迹方程.
A.
正确
B.
错误
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