who was the painter that studied dead bodies to improve his painting of people?

请问~请问~这个是什么意思~和答案是什么呢?
谢谢~如果帮我解答~我我~感激万分~~~~

Who was the most successful hacker ever? Who was the first person ate potato? by who was the book written who was the first studet __the classroom? Who was the first one _______? who was the last person to leave ? --who was the "merry wanderer of the night In Roman mythology, who was the god of the sky? who was the last person ___ the office yesterday ? After the accident the man who was hurt seriously__to hospital