水果是膳食中维生素C和不溶性膳食纤维的最重要来源。()
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一种食物在加工中去除了水分,营养素的绝对含量高了,营养素密度也提高了。()
选择粗粮作为主食的好处之一,是它们的血糖反应比较低。()
Youaredevelopinganapplicationthatusesrole-basedsecurity.Theprinicipalpolicyoftheapplicationdomainisconfiguredduringstartupwiththefollowingcode:AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);YouneedtorestrictaccesstooneofthemethodsinyourapplicationsothatonlymembersofthelocalAdministratorsgroupcancallthemethod.Whichattributeshouldyouplaceonthemethod?()
A. [PrincipalPermission(SecurityAction.Demand,Name=@"BUILTIN\Administrators")]
B. [PrincipalPermission(SecurityAction.Demand,Role=@"BUILTIN\Administrators")]
C. [PrincipalPermission(SecurityAction.Assert,Name=@"BUILTIN\Administrators")]
D. [PrincipalPermission(SecurityAction.Assert,Role=@"BUILTIN\Administrators")]