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 w

题目

Passage Four

Archimedes 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. Archimedes

B. Archimedes's Principle

C. A Gold and Silver Crown

D. The King of Syracuse

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更多“Passage Four Archimedes was a famous Greek mathematician and scientist. He was born arou ”相关问题

  • 第1题：

    阿基米德（Archimedes）


    参考答案：

    （公元前287年—公元前212年），伟大的古希腊哲学家、百科式科学家、数学家、物理学家、力学家，静态力学和流体静力学的奠基人，并且享有“力学之父”的美称，阿基米德和高斯、牛顿并列为世界三大数学家。


  • 第2题：


    请在第_____处填上正确答案。

    A.unknown
    B.strange
    C.sad
    D.famous

    答案：D
    解析：
    这个陌生人是个著名的魔术师。

  • 第3题：

    用 Born-Haber 循环可计算BN晶格能。


    错误

  • 第4题：

    The working parent is not willing to listen to her (his) four-year-old child talking about hissandbox games because she (he) is___________.

    A.boring
    B.very tired
    C.busy
    D.angry

    答案：B
    解析：
    通读第四段，注意短语“fartoo beaten down”，可知父母每天工作非常辛苦和疲惫。所以和孩子的交流沟通少了。正确答案为B。A、C、D都不符合题意。

  • 第5题：

    下列给字符串二维数组进行赋值的语句中，错误的是（）。

    A．String s[ ] [ ] = new String [ ] [ ] { { “One “ , “ Two “ }, { “ Three “ , “ Four “ } } ;

    B．String s[ ] [ ] = { { “ One “ , “Two “},{ “ Three “ , “ Four “ } } ;

    C．String s[ ] [ ] = new String [ ] [ ] { { “Zero”} , { “ One ” , “Two” , “ Three” , “ Four” } } ;

    D．String s[ 2] [2 ] = { { “ One ” , “Two”},{“ Three” , “ Four” } } ;


    String s[ 2] [2 ] = { { “ One ” , “Two”},{“ Three” , “ Four” } } ;

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