以下程序运行时,输出到屏幕的结果是___(6)___。

#include

enum color{BLACK,YELLOW,BLUE=3,GREEN,WHITE};

void main()

{char *colorname[]={"Black","Yellow","Blue","Green","White"};

enum color cl=GREEN,c2=BLUE;

printf("%s",colorname[c1-c2]);

}

我国常用的食品防腐剂有

A．苯甲酸、山梨酸、丙酸
B．糖精、甘草、甜味菊甙
C．硝酸盐、亚硝酸盐
D．硫磺、亚硫酸钠
E．没食子酸丙酯、二丁基羟甲苯