百灵比迈克大两岁,可以说:( )
A:Bai Ling is 2 kg heavier than Mike.
B:Bai Ling is two years bigger than Mike.
C:Bai Ling is two years older than Mike.
图中,气温年较差最大是( )
现准确称取0.44g样品(只含C、H、O三种元素中的两种或三种),经燃烧后A管增重0.88g,B管增重0.36g.请回答: