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单项选择题

现有:1.classBook{2.privatefinalvoidread(){System.out.print("book");}3.}4.classPageextendsBook{5.publicstaticvoidmain(String[]args){6.//insertcodehere7.}8.privatefinalvoidread(){System.out.print("page");}9.}和如下三个代码片段(x,y,z):x.//justacommenty.newPage().read();z.newBook().read();分别插入到第6行,有几个允许代码通过编译并可以运行且无异常?()
A.0
B.1
C.2
D.3

A.classBook{2.privatefinalvoidread(){System.out.print("book");}3.}4.classPageextendsBook{5.publicstaticvoidmain(String[]args){6.//insertcodehere7.}8.privatefinalvoidread(){System.out.print("page");}9.}和如下三个代码片段(x,y,z):x.//justacommenty.newPage().read();z.newBook().read();分别插入到第6行,有几个允许代码通过编译并可以运行且无异常?()
A.0
B.1
C.2
D.3
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单项选择题YournetworkconsistsofWindowsXPcomputers.AllcomputersarejoinedtoasingleActiveDirectorydirectoryservicedomainandlocatedinasingleActiveDirectorysite.YoucreateanewGroupPolicyobject(GPO)andlinkittothesite.Thepolicyconfiguresdefaultscreensaversettings.Useraccountsofusersintheresearchdepartmentarelocatedinanorganizationalunit(OU)namedResearch.Youneedtoallowusersintheresearchdepartmenttoconfigureadifferentscreensaversettingontheircomputers.Whatshouldyoudo?()A.MovetheuseraccountsofusersintheresearchdepartmenttotheUserscontainer.B.Configurealocalsecuritypolicyonallcomputersintheresearchdepartmenttoallowuserstomodifytheirscreensaversettings.C.Addusersintheresearchdepartmenttoadomaingroup.AllowthegrouptheApplyGroupPolicypermissionfortheGPO.D.Addusersintheresearchdepartmenttoadomaingroup.DenythegrouptheApplyGroupPolicypermissiontotheGPO.

A.AllcomputersarejoinedtoasingleActiveDirectorydirectoryservicedomainandlocatedinasingleActiveDirectorysite.YoucreateanewGroupPolicyobject(GPO)andlinkittothesite.Thepolicyconfiguresdefaultscreensaversettings.Useraccountsofusersintheresearchdepartmentarelocatedinanorganizationalunit(OU)namedResearch.Youneedtoallowusersintheresearchdepartmenttoconfigureadifferentscreensaversettingontheircomputers.Whatshouldyoudo?()
A.MovetheuseraccountsofusersintheresearchdepartmenttotheUserscontainer.
B.Configurealocalsecuritypolicyonallcomputersintheresearchdepartmenttoallowuserstomodifytheirscreensaversettings.
C.Addusersintheresearchdepartmenttoadomaingroup.AllowthegrouptheApplyGroupPolicypermissionfortheGPO.
D.Addusersintheresearchdepartmenttoadomaingroup.DenythegrouptheApplyGroupPolicypermissiontotheGPO.