A:马尾松是常绿植物,常年不会落叶
B:初夏,新枝上会长出雌、雄球花
C:第二年秋,松球果的每个鳞片中都含有一粒种子
D:马尾松叶与桃叶相似,叶扇形
The teachers encourage their students to the problems by themselves, and in this way students can enjoy success.
给定下列函数:①y=x12 ②y=log12(x+1) ③y=x-1 ④y=2x-1,其中在区间(0,1)上单调递减的函数的序号是( )