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【单选题】
将铜丝烧热，迅速插入氢气中，发生反应：CuO+H 2 △ . Cu+H 2 O．若用下列物质代替氢气进行上述实验：①氨气、②稀硝酸、③稀盐酸、④乙醇、⑤一氧化碳，铜丝所发生的变化情况与上述实验完全相同的是（ ）A.
①②③⑤
B.
①④⑤
C.
①③⑤
D.
①③④⑤
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反馈参考答案：
举一反三
【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.
【单选题】Rhetorical Devices. Decide which rhetorical device is used in the underlined part of the sentences. “It was a splendid population—for all the slow, sleepy, sluggish-brained sloths stayed at home...” ...
A.
Metaphor
B.
Antithesis
C.
Alliteration
D.
Euphemism
【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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