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.

圆的内接正五边形ABCDE的边长为a，圆的半径为r．下列等式成立的是（　　）

利用基本尺规作图，下列条件中，不能作出唯一直角三角形的是（　　）

根据你平时读书的体会，将下面的句子补充完整

读书使人____ ，读书使人____ ，读书使人____ 。

在平面直角坐标系中，O为原点，A（2，0），B（0，2），动点P满足|$\overrightarrow{AP}$|=1，则|$\overrightarrow{OP}$+$\overrightarrow{OB}$|的最大值是（　　）