Jack was busy last Sunday. His parents were not at home. He walked to the park in the morning. He read English books and did sports there.Then he visited his friend Tom. Tom is his best friend. He is younger and shorter than Jack.They played puzzles together.After lunch, Jack went back home. In the afternoon, Jack cleaned the room and washed the clothes. After finishing these things, his parents got home.

    Jack had a nice dinner with his parents. At 10 o'clock, he went to bed.

在科学探究过程中，对于同一事实可能会有不同的观点，因此，学会区分事实和观点是十分必要的，请判断下列陈述属于观点的是（  ）

目前在美洲已建成的水电站中规模最大的水利枢纽工程是（ ）

 郴州市宜章县瑶岗仙镇退休干部刘真茂，33年甘于寂寞与艰辛，坚守在义务护林第一线，尽一生力量守护湘、粤、赣三省交界的一块绿洲，用行动信守着上山之初“坚守大山一辈子，死了就埋在山上，永不下山！”的誓言。2015年10月13日，他荣获全国诚实守信道德模范称号。

结合以上材料回答，维护公共利益，要付出哪些代价？可能获得哪些好处？请分别列举三项。

读村落分布示意图，回答下列问题。