Archimedes was a famous Greek mathematician and scientist. He was born about 287 BC and died in 212 BC.
Archimedes is well-known for one specific (精确的) idea that he came up with. "Archime des' principle" tells us 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 moves. For example, if you put a piece of wood and a piece of metal of the same size in water, only the wood will float. Both the wood and metal move the same amount (量) of water, but the water moved by the wood weighs less than that of the water moved by the gold. 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 (皇冠) was pure gold or a mixture of gold and silver. The King, of course, did not want to 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 the one made of silver. The experiment was done and the goldsmith was proved guilty of trying to cheat the King.
The best title for this passage is ______
Archimedes
B. Archimedes's principle
C. A Gold and Silver Crown
D. The King of Syracuse
该银行上述第(2)笔业务应纳营业税为()万元。
A. 0.8
B. 1.6
C. 1.44
D. 0.96
A.She feels her value wasn't appreciated.B.She wants a more interesting job.C.She's ti
A. She feels her value wasn't appreciated.
B. She wants a more interesting job.
C. She's tired of working.
D. She wants more money.
下列关于普通股评价模型的局限性的说法,错误的是()。A.未来现金流入的现值只是决定股票价值的基本下列关于普通股评价模型的局限性的说法,错误的是()。
A. 未来现金流入的现值只是决定股票价值的基本因素而不是全部因素
B. 模型对未来期间股利流入量预测数的依赖性很强,不过这些数据可以比较准确地预测
C. 股利固定模型、股利固定增长模型的计算结果受D0或D1,的影响很大,而这两个数据可能具有人为性、短期性和偶然性,模型放大了这些不可靠因素的影响力
D. 折现率的选择有较大的主观随意性