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【多选题】
逻辑电路中关于高低电平的规定,正确的是A.
实际的高电平是一个固定数值
B.
实际的低电平不是一个固定数值
C.
在实际使用中，应保证实际的高电平大于或等于标准高电平
D.
在实际使用中，应保证实际的低电平小于或等于标准低电平
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举一反三
【单选题】You have two computers named Computer1 and Computer2 that run Windows 7. Computer2 is configuredfor remote management. From Computer1, you need to remotely execute a third-party command line toolnamed...
A.
Start disk.exe /d //computer2
B.
Tscon disk.exe /DEST：computer2
C.
Winrm e disk.exe r：computer2
D.
Winrs r：computer2 disk.exe
【单选题】A computer is a __________ for processing information.
A.
instrument
B.
mechanic
C.
device
D.
equipment
【单选题】对于中长期债券而言,关于通货膨胀风险下列说法错误的是( )。
A.
债券货币收益的购买力下降
B.
债券的实际收益率降低
C.
投资者投资债券的利息收入受到不同程度的价值折损
D.
投资者本金不受影响
【单选题】You have a computer that runs Windows Vista. You need to identify whether the computer can be upgradedto Windows 7. Which tool should you use?（）
A.
Windows Anytime Upgrade for Windows 7.
B.
Windows Anytime Upgrade for Windows Vista.
C.
Windows 7 Upgrade Advisor.
D.
Windows Vista Upgrade Advisor.
【单选题】You have a portable computer that runs Windows 7. The computer is joined to a domain. Multiple users logon to the computer. You need to prevent the computer from displaying the username of the last us...
A.
From Control Panel， modify the User Profiles settings.
B.
From Control Panel， modify the Personalization settings.
C.
From the local computer policy， add a policy template.
D.
From the local computer policy， modify the local security policy.
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