— What's this English?
— It is a map.
A:at
B:in
C:of
D:on
_____ would you like? I like fish.
----_ do you eat fast food?
---- Twice a week.
某同学是学校有名的“小胖墩”,平时一日三餐鸡鱼肉不断,各种巧克力应有尽有.可是该同学却经常感冒,身体素质较差,生物老师对其原因的分析是营养不良.该同学缺乏的营养成分主要是( )