请仔细阅读《中国行政区划》图，我国下列省级行政单位中，与北京市相邻的有（　　）

已知函数y=$\frac{2x-1}{x+2}$中，当x=a时的函数值为1，则a的值是（ ）

阅读短文，回答问题。

    I live in a small house. It's a small green house. In the house we have a dinning room,two bedrooms, a living room and a kitchen. We watch TV in the living room. We have our breakfast, lunch and supper in the dining room. We sleep in the bedroom. We wash faces and have baths in the bathroom.

Question ：