PC机中CPU进行算术和逻辑运算时,可处理的信息的长度为( )。A.32位 B.

题型:单项选择题

问题:

PC机中CPU进行算术和逻辑运算时,可处理的信息的长度为( )。

A.32位

B.16位

C.8位

D.都可以

考点:计算机等级考试数据库技术计算机三级(数据库技术)1
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下列关于上市公司非公开发行股票的表述中,不符合证券法律制度规定的有()。

A.某次发行的股份自发行结束之日起,36个月内不得转让

B.发行价格应不低于定价基准日前20个交易日公司股票的均价

C.募集资金须存放于公司董事会决定的专项账户

D.除金融类企业外,不得将募集资金直接或间接投资于以买卖证券为主要业务的公司

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人民小学开展读书节活动,五(3)班的小林读一本书共400页,小林看了4天后,正好看完某一页书的反面,夹书签的两页之和是81,照这样计算,小林看完这本书还要几天?

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在各图的方框内填上适当的光学元件

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将边长为 10cm 的实心正方体木块轻轻放入盛满水的大水槽内,待木块静止时,从水槽中溢出了600g水,g取10N/kg,求:

( 1 )木块受到的浮力;

( 2 )木块的质量:

( 3 )木块的密度.

题型:单项选择题

                          

C

In the early days of human history, people lived by hunting wild animals, or gathering wild grains and plants for food. Then, some people learned to grow crops and raise animals for food. They were the first farmers.

Since the sixteenth century, the word farm has meant agricultural land. But a much older meaning of the word farm is linked to economics. The word farm comes from the Latin word, firma, which means an unchanging payment.

Experts say the earliest meaning of the English word farm was a yearly payment made as a tax or rent.

Farmers in early England did not own their land. They paid every year to use agricultural lands.

Beans are a popular farm crop. But beans are used to describe something of very little value in the expression, not worth a hill of beans. The expression is often used today. You could say, for example, that a bad idea is not worth a hill of beans.

Language expert Charles Earle Funk said the expression was first used almost seven hundred years ago. He said Robert of Gloucester described a message from the King of Germany to King John of England as altogether not worth a bean.

49. In the early days of human history, how did people live?

A. By raising animals.                                      B. By hunting wild animals.

C. By growing crops.                                   D. By selling plants.

50. What is the much older meaning of “farm” linked to?

A. Agriculture.              B. Industry.           C. Economics.   D. Changing payment.

51. What does the expression “not worth a hill of beans” mean?

A. Very important.        B. Very valuable.           C. Not valuable.     D. Not expensive.

52. Which of the following is NOT true?

A. Since the sixteenth century, the word farm has meant agricultural land.

B. The word farm comes from the Latin word.

C. Farmers in early England owned their land.

D. The expression “not worth a hill of beans” was first used almost seven hundred years ago.

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