阅读下面短文，掌握大意，然后在各题所给的四个选项（A、B、C、D）中选一个最佳选项

    On December 1, 1955, Rose Parks   1   work in Alabama, in America by bus as usual. She chose a seat by the window and sat down. Then more people   2   the bus and soon it was full. One man didn't have a    3   . The bus driver looked at Rosa and shouted at her: "Stand up! Give this man   4   seat!"

    Rosa was tired after a long day at work. So, she   5   said:" No." This started something that changed the United States forever.     6  Rosa Parks was a   7    black woman and the man on the bus was white.

    When Rosa was a young girl, she walked to school, but the white children took a bus. Rosa   8    their bus every day when it went by. "In those days," she said, "There was a white world and black world. I lived in the black world." She went to a black school and studied with black children.

    When Rosa said "No", she    9   the law. The law said a black person had to  10  his or her seat to a white person.  11   came and took her to prison. Many black people in Alabama were very angry, and they   12  using the buses for a year. Then the law changed, and   13   , things started to change all over the     14  .

    For the rest of her life, Rose worked to help black people in America. She died in October, 2005,    15   the age of 92. 

泉水是“泉城”济南的文化之魂，节水保泉，杜绝水污染是我们泉城人的职责．

（1）自然界中，水的存在形式多姿多彩，水通过三态变化实现天然循环，这个循环过程是由　____ 　（填序号）提供的能量．

A．地球自转   B．太阳照射   C．海洋潮汐   D．植物生长

（2）某化学小组的小泉同学取趵突泉水进行探究实验．先将水样进行过滤操作如图，操作中的一处错误是____ 

（3）目前全球都面临淡水危机，济南市区县中的大部分饮用水来自地表天然水，天然水转化成饮用水需经一系列净化，高铁酸钠（Na₂FeO₄）是一种性能优良的净水剂，其中铁元素的化合价是　____ ．

（4）过滤、吸附、蒸发、结晶和蒸馏是常用的分离混合物的方法，若想从过滤后的水中获得纯净水，可以采用____ 法．