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【单选题】
Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 (SP2). You create a new domain user account named User1 and assign the account a password of P@ssw0rd. On the new account, you enable the User must change password at next logon option. A week later, you discover that User1 is still using the password P@ssw0rd to log on to the domain. You need to ensure that User1 is forced to use a different password the next time she changes her password. What should you do first? （）A.
In the Default Domain Policy, select Enforce password history.
B.
In the Default Domain Policy, select Passwords must meet complexity requirements.
C.
From the User’s account properties, select Account is sensitive and cannot be delegated.
D.
From the User’s account properties, select Store password using reversible encryption.
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【单选题】如果把直流电动机直接接入电源启动，在启动时必须采取限流措施。为获得较大的起动转矩，又不使换向器受到严重损伤，通常都把起动电流限制在额定电流的（）倍。
A.
1
B.
1.5
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2
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【单选题】如果把直流电动机直接接入电源启动，在启动时，必须采取限流措施。为获得（），又不使换向器受到严重损伤，通常都把启动电流限制在额定电流的1.5--2.5倍。
A.
较大起动转矩
B.
均匀的调转数
C.
较大的机械能
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较大的转数