蔬菜与水果含丰富的（）
A.碳水化合物
B.蛋白质
C.维生素
D.脂肪
E.糖类
参考答案：C
皮肤上良性赘生物称为______。
The bus is too crowded. I prefer ______ rather than _____. [ ]
A. walk home; take the bus
B. to take the bus; walk home
C. to walk home; take the bus
