题干

如图是甲乙两种固体物质的溶解度曲线图。请你根据图示回答问题:

①甲和乙的溶解度相等时,温度为____ ℃;

② 40 ℃时,将相同质量的甲、乙的饱和溶液,分别降温至20℃,析出晶体较多的是 ____ ;                 

③ 40℃时,要完全溶解60 g乙得到饱和溶液,需要水 ____ g;

④ A、B两点是甲物质的两种不同状态的溶液,要实现A到B的转化方法是____。

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答案(点此获取答案解析)

20,甲,150,升温并加溶剂(或加溶剂并升温)

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    Henri Cartier-Bresson (1908-2004) is one of the most original and influential figures in the history of photography. His photographs helped establish photojournalism as an art form.

    Henri's family was wealthy—his father made a fortune as a textile manufacturer—but Henri later joked that due to his parents' economical ways, it often seemed as though his family was poor.

    Educated in Paris, Henri developed an early love for literature and arts. As a teenager, Henri was against his parents' formal ways of education. In his early adulthood, he fell in love with several appetites, but it was art that remained at the center of his life.

    Henri traveled to Africa in 1931 to hunt antelope and boar. And Africa fueled another interest in him: photography. He then wandered around the world with his camera, using a handheld camera to catch images from fleeting moments of everyday life.

    Not long after World War Ⅱ, Henri traveled east, spending considerable time in India, where he met and photographed Gandhi shortly before he was killed in 1948. Henri's work to document Gandhi's death and its immediate effect on the country became one of Life Magazine's most prized photo essays.

    Henri's approach to photography remained much the same throughout his life. He made clear his dislike of images that had been improved by artificial light, darkroom effects, and even cutting. The naturalist in Henri believed that all editing should be done when the photo is taken. In 1952, his first book, The Decisive Moment, a rich collection of his work spanning two decades, was published. "There is nothing in this world that does not have a decisive moment," he said.

    In 1968, he began to turn away from photography and returned to his passion for drawing and painting.