CPU通过()实现程序接发指令或与内存/外设的数据交换。A、总线 B、北桥 C、南桥

题型:单项选择题

问题:

CPU通过()实现程序接发指令或与内存/外设的数据交换。

A、总线

B、北桥

C、南桥

D、主板芯片组

考点:计算机硬件维修工程师计算机硬件维修工程师题库
题型:单项选择题

The Great Fire of London started in the very early hours of 2 September 1666. In four days it destroyed more than three-quarters of the old city, where most of the houses were wooden and close together. One hundred thousand people became homeless, but only a few lost their lives.

The fire started on Sunday morning in the house of the King's baker(面包师)in Pudding Lane, The baker, with his wife and family, was able to get out through a window in the roof. A strong wind blew the fire from the bakery(房)into a small hotel next door. Then it spread quickly into Thames Street. That was the beginning.

By eight o'clock three hundred houses were on fire. On Monday nearly a kilometer of the city was burning along the River Thames. Tuesday was the worst day. The fire destroyed many well-known buildings, old St Paul's and the Guildhall among them.

Samuel Pepys, the famous writer, wrote about the fire. People threw their things into the river. Many poor people stayed in their houses until the last moment. Birds fell out of the air because of the heat.

The fire stopped only when the King finally ordered people to destroy hundreds of buildings in the path of the fire. With nothing left to burn, the fire became weak and finally died out.

After the fire, Christopher Wren, the architect(建筑师), wanted a city with wider streets and fine new houses of stone. In fact, the streets are still narrow; but he did build more than fifiy churches, among them new St Paul's.

The fire caused great pain and loss, but after it London was a better place: a city for the future and not just of the past.

小题1:The fire began in_______.

A.a hotel.

B.the palace.

C.Pudding Lane.

D.Thames Street.小题2:The underlined word "family" in the second paragraph means_______.

A.home.

B.children.

C.wife and husband.

D.wife and children.小题3:It seems that the writer of the text was most sorry for the fact that ________.

A.some people lost their lives.

B.the birds in the sky were killed by the fire.

C.many famous buildings were destroyed.

D.the King's bakery was burned down.小题4:Why did writer cite(引用)Samuel Pepys?

A.Because Pepys was among those putting out the fire.

B.Because Pepys also wrote about the fire.

C.To show that poor people suffered most.

D.To give the reader a clearer picture of the fire.小题5:How was the fire put out according to the test?

A.The king and his soldiers came to help.

B.All the wooden houses in the city were destroyed.

C.People managed to get enough water from the river.

D.Houses standing in the direction of the fire were pulled down.

题型:单项选择题

在声场内的一定点位上,将某一段时间内连续暴露的不同A声级变化,用能量平均的方法以A声级表示该段时间内的噪声大小,这个声级称为( )。

A.倍频带声压级

B.昼夜等效声级

C.A声功率级

D.等效连续A声级

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治疗缺铁性贫血和哪种维生素合用()。

A.维生素C

B.维生素K

C.鱼精蛋白

D.垂体后叶素

E.右旋糖酐

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50岁男子,右眼视力下降(0.1)2周,下方视物遮挡感,逐渐扩大,不伴眼痛,血压正常。最常见的疾病是()

A.视网膜静脉阻塞

B.急性闭角型青光眼

C.中浆

D.视网膜中央动脉阻塞

E.视网膜脱离

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