将下列名言进行分类,所揭示的道理一致的一组是( )
①友谊需要忠诚去播种,热情去灌溉,原则去培养,谅解去护理
②得不到友情的人将是终身可怜的孤独者
③友谊使欢乐倍增,悲痛锐减
④没有友情的社会则只是一片繁华的沙漠
A:①②③
B:①③④
C:②③④
D:①②④
式子a2x>x(a2+1)成立,则x满足的条件是____ .
bring give grandma then grandpa
The Mid-Autumn Festival is coming. I like it. I am very happy. My ____and ____ are going to come to my house. They are going to ____ gifts for me. And I'm going to ____ them gifts. ____ we will eat moon cakes together. We will be happy.