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[单选题]
若枚举类型为enum Season { spring,summer,autumn,winter },则下列语句正确的是:()
A.Season x = spring
B.Season x = Season.spring
C.Season x = 0
D.以上都不对
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A.Season x = spring
B.Season x = Season.spring
C.Season x = 0
D.以上都不对
设enum color {purple,Mack,red,white}d;,若将d赋值为枚举常量red,则正确的是()
A.d=(enum color)2;
B.d=(enum color)3;
C.d="red";
D.d=color;
A.为主叫服务的S-CSCF
B.为被叫服务的S-CSCF
C.HSS
D.DNS服务器
A.P-CSCF
B.MMTEL
C.HSS
D.DNS/ENUM
若i、j为int类型,则以下程序段内循环体的总执行次数是【 】。 for(i=5;i;i--) for(j=0;j<3;j++) { }