A:在外力作用下,背斜常形成山岭
B:背斜常形成自流盆地
C:在内力作用下,向斜常形成谷地
D:向斜谷地常形成裂谷、陡崖
下列行为中哪种做法与“关爱生命”相符合( )
按此规律第5个图形中共有点的个数是____.
—We are supposed to visit him from time to time. Then he won't feel _______.