题目内容

采用跳频主要是由于具有如下的作用()

A. 干扰源分集
B. 频率分集
C. 空间分集
D. 极化分集

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律师保密原则的含义是什么?

“五四”小说取得文学的正宗地位

You have a computer named Computer1 that runs Windows 7. Computer1 uses an NTFS-formatted USBdrive that has ReadyBoost enabled. You need to modify the amount of space that ReadyBoost reserves onthe USB drive. What should you do?()

A. Open Computer and modify the properties of the USB drive.
B. Open Performance Information and Tools and run disk cleanup.
C. Open Devices and Printers and modify the properties of the USB drive.
D. Open Device Manager and modify the properties of the USB device.

“发烧、摔跤、生病”等都是非自主动词。

A. 正确
B. 错误

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