A:including
B:include
C:included
D:to include
在探究“唾液对淀粉的消化作用”时,某小组同学展开了积极的讨论(如图所示),请分析作答:
That is not____kite. That kite is very small,but____is very big. (I)
图形
…
三角形个数
1
2
3
4
10
n
所需火柴数
5
7
9
1001
①终年积雪的雪山 ②一望无际的草地 ③缺少粮食给养 ④敌人围追堵截