阿基米德(Archimedes)
阿基米德(Archimedes)
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Passage FourArchimedes was a famous Greek mathematician and scientist. He was born around 287 BC and he died in the year 212 BC.Archimedes is most well-known for one specific idea that he came up with. "Archimedes's Principle" states that a solid object which is immersed in a liquid is pushed up by a force which is equal to the weight of the water that the object moves. For example, if you put a piece of wood and a piece of gold the same size in water, only the wood will float. Both the wood and gold move the same amount of water, but the wood weighs less than this water, while the gold weighs more.It is believed that Archimedes discovered this principle when the king of Syracuse asked him to solve a problem. The king wanted to know if his crown was pure gold or a mixture of gold and silver. The king, of course, did not melt his crown to find out. The idea came to Archimedes as he lowered himself into his bath. He noticed how the water spilled out of the tub. He decided to use the same idea for the crown. He knew that a gold crown immersed in water would weigh more than one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the king.48. A good title for the selection is______.A. ArchimedesB. Archimedes's PrincipleC. A Gold and Silver CrownD. The King of Syracuse
“走自己的路,让别人去说吧“、“冬天来了,春天还会远吗?”、“给我一个稳固的支点,我就能把地球翘动”分别是()的名言。A、但丁、雪莱、阿基米德B、列宁、拜伦、阿基米德C、裴多菲、泰戈尔、阿基米德
单选题Which of the following is the best way to combine sentences 3, 4, and 5?AThe name of the phenomenon comes from the legend of Archimedes, who had been thinking for days about how to determine whether King Hieron II’s crown was pure gold without destroying it.BArchimedes had been thinking for days about how to determine whether King Hieron II’s crown was pure gold without destroying it, and this is where the name of the phenomenon comes from.CThe legend of Archimedes thinking about how to determine whether King Hieron II’s crown was pure gold without destroying it is the origin of the name of the phenomenon.DThe phenomenon is named for Archimedes and his thinking for days about how to determine whether King Hieron II’s crown was pure gold without destroying it.EThe name of the phenomenon was from Archimedes, and his thinking for days about how to determine without destroying it whether King Hieron II’s crown was pure gold.
单选题“走自己的路,让别人去说吧“、“冬天来了,春天还会远吗?”、“给我一个稳固的支点,我就能把地球翘动”分别是()的名言。A但丁、雪莱、阿基米德B列宁、拜伦、阿基米德C裴多菲、泰戈尔、阿基米德