题干

准确提取下面文字里的信息,写出技术人员修复古画的实验步骤。

    为了挽救博物馆的名画,技术人员想到了用性质非常活泼的单原子氧来清除油画上的清漆膜。同时,为了对珍责的古油画负责,也让博物馆管理人员放心,技术人员决定先用一张涂有清漆膜的普通油画来做实验。技术人员把制取的足够的单原子氧引入放有油画的真空馆做实验。开始阶段,单原子氧撕开了清漆分子中的碳和氧之间的黏合,并生成二氧化碳和水蒸气,随着这些气体不断被真空泵抽出,油画表面的清漆越来越薄,不久便旧貌换新颜,而且整幅油画毫发未损。

请提出两点建议,并加以简述。耍求观点明确,简明得体。

步骤一:____。 (不超过10个字)

步骤二:____。 (不超过15个字)

步骤三:____。 (不超过15个字)

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\u6b65\u9aa4\u4e00\uff1a\u5236\u53d6\u8db3\u591f\u7684\u5355\u539f\u5b50\u6c27\u3002,\u6b65\u9aa4\u4e8c\uff1a\u628a\u5355\u539f\u5b50\u6c27\u5f15\u5165\u653e\u6709\u6cb9\u753b\u7684\u771f\u7a7a\u9986\u3002,\u6b65\u9aa4\u4e09\uff1a\u7528\u771f\u7a7a\

同类题5

阅读理解

    Do you know any 9-year-olds who have started their own museums? When Theodore Roosevelt was only nine, he and two of his cousins opened the "Roosevelt Museum of Natural History". The museum was in Theodore's bedroom. It had a total of 12 specimens. On display were a few seashells, some dead insects, and some birds' nests. Young Roosevelt took great pride in his small museum.

    Born in New York in 1858, Theodore Roosevelt was not always healthy. "I was a sickly boy", he once wrote. Roosevelt had a health condition called asthma. He often found it hard to breathe. Instead of playing, he watched nature and then read and wrote about it.

    Roosevelt's interest in nature sometimes got him into trouble. Once, his mother found several dead mice in the icebox. She demanded that the mice be thrown out. This was indeed "a loss to science", Roosevelt said later.

    Because Roosevelt was often sickly as a boy, his body was small and weak. When he was about 12, his father asked him to improve his body. Roosevelt began working out in a gym. He didn't become strong quickly. But he did decide to face life's challenges with a strong will. That determination stayed with Roosevelt his whole life. And eventually his body did get strong. As an adult, he was an active and healthy person. He enjoyed adventures, and he loved the outdoors.

    A toy company named the teddy bear for Theodore "Teddy". After knowing that, Roosevelt refused to shoot a baby bear while hunting.

    In 1900, at the age of 41, Roosevelt was elected Vice President. A year later, President McKinley, was shot and killed. Roosevelt became our 26th President. At 42, he was the youngest leader the country had ever had.