Last year, some groups of students in their community (社区) made a survey about "How do people spend their free time?" The following diagrams show some results of it:
Diagram (1): Hours for people of different ages who surf the Internet in a week.

Diagram (2): Different days people go to the library. (library attendance)

Diagram (3): Different programs people like.

根据上面三个图表内容，选择正确答案。

微风吊扇通电后扇叶转动，此过程中____ 能转化为动能．拔下插头，在插头处接发光二极管，用手旋转叶片，发光二极管发光，这是____ 生电的现象，人们利用这一原理制成了____ （发电机/电动机）．远距离输电需要用高压输电，如果输送的电功率一定，将输电电压升到原来的10倍，则输电线上损失的功率将变为原来的____ 倍.

读“中国人口密度分布示意图”，我国维吾尔族主要集中分布的省级行政区是(    )