题目

Some popular places to visit are built by people. Other famous places are created by nature. For example, in the northeast of the United States, there was a famous rock on a high mountain that looked just like an old man. He had lots of hair, a big nose and a beard．People called him“The Old Man of the Mountain” and every year more than a million people came to look at him. “The Old Man of the Mountain”, also known as the Great Stone Face or the Profile, was 1,200 feet (370 meters) above Profile Lake, and measured 40 feet (12 meters) tall and 25 feet (7.6 meters) wide. 下列所示的四个图象，能正确反映对应变化关系的是（ ）A.电解水B.向两份完全相同的稀盐酸中分别加入锌粉和铁粉C.加热一定质量的高锰酸钾D.向一定量的氢氧化钠溶液中加水稀释