读图，完成下题．

已知f（x）是定义在（﹣∞，+∞）上的偶函数，且在（﹣∞，0上是增函数，设a=f（log₄7），b=f（${\log }_{\frac{1}{2}}$3），c=f（2^1.6），则a，b，c的大小关系是（　　）

判断，对的写"正确"，错的写"错误"。

    Hi, I'm Cathy. Today is Ann's birthday. I'm going to her birthday party. But my old dress is too small for me now. I want a new one.

Now I'm in the store. Wang Ling is there too. She is buying a gift to Ann. She is buying a toy panda. The dresses in the store are beautiful, there are many colors. I like the red one. Red is my favorite color. But it's too expensive; it's eighty-five yuan! That pink one looks good, too. And it's just right for me! It's cheap, it's thirty-two yuan. And I buy a gift for Ann, too. It's a whistle.

    I'm wearing my new pink dress to Ann's birthday party. Ann likes the whistle a lot and she likes the toy panda, too.