题干
Low-carbon lifestyle is of great benefit to improve the world environment． can be
enjoyed from it until you have a deep understanding of it，however．
enjoyed from it until you have a deep understanding of it，however．
A：Something
B：Nothing
C：Few
D：Much
答案(点此获取答案解析）
B
，小明用小棒搭房子，他搭3间房子用13根小棒．照这样，搭10间房子要用
、
、
、
中，分式的个数有（ ）
