单项选择题

A.隔离层,糖衣层,粉衣层,有色糖衣层
B.隔离层,粉衣层,糖衣层,有色糖衣层
C.粉衣层,隔离层,糖衣层,有色糖衣层
D.粉衣层,糖衣层,隔离层,有色糖衣层
E.粉衣层,隔离层,有色糖衣层,防湿层