The cup is on _____ desk.
A:teacher
B:teacher's
C:teachers
D:the teacher's
某课外小组学生学做比萨饼,购买了下列食物:①洋葱、②食盐、③橄榄油、④小麦粉.请回答:
(1)富含淀粉的是 ____ (填序号,下同).
(2)富含油脂的是 ____ .
(3)富含维生素的是 ____ .
(4)属于调味剂的是 ____ .