——How much do you usually ______ on food and clothes every month ?——About ¥600.
A:take
B:cost
C:spend
D:pay
(2015•娄底)绿色开花植物的结构层次,从微观到宏观,正确的排列顺序是( )
①植物体 ②细胞 ③器官 ④组织.