题目内容

可调闸及动力制动所用的磁放大器是工作在反馈系数KFK()的工作状态。

A. ≥1
B. >1
C. ≤1
D. <1

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Your computer uses both wired and wireless network connections. The networks are not connected to each other. You disallow incoming connections in Microsoft Windows Firewall. You create a shared folder. Users on the wireless network cannot access the shared folder. You need to allow access to the shared folder from the wireless network. You also need to maintain the security of the wired network. What should you do?()

A. Turn off the Windows Firewall feature.
B. Disable the Block all incoming connections option.
C. Turn off the Spyware and other malware protection option.
D. Enable the File and Printer Sharing exception in the firewall settings of the wireless network adapter.

夹板法制作7/2.6拉线中把的制作规格为一个夹板,间隔()mm、缠()mm、间隔()mm收口。

车外噪声测量要求,测试传声器位于20m跑道中心点O两侧,各距中线7.5m,距地面高度()。

A. 0.5m
B. 0.8m
C. 1.2m

在使用多片DAC0832进行D/A转换、并分时输入数据的应用中,它的两级数据锁存结构可以().

A. (A)保证各模拟电压能同时输出
B. (B)提高D/A转换速度
C. (C)提高D/A转换精度
D. (D)增加可靠性

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