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问题 单项选择题

Internet上各种网络和各种不同类型的计算机互相通信的基础是（）协议。

A.HTTP

B.IPX

C.X.25

D.TCP／IP

答案

参考答案：D

解析：TCP／IP是Internet最基本的协议、Internet国际互联网络的基础，由网络层的IP协议和传输层的TCP协议组成。TCP／IP定义了电子设备如何连入因特网，以及数据如何在它们之间传输的标准。故选D。

阅读理解
Steve Jobs was one of the fathers of the personal computer times and the founder of Apple. He was also one of the giants of the information age. Here are some of his greatest contributions.
AppleⅡ
Jobs and Steve Wozniak founded Apple Computers inc.in 1976. A year later, the AppleⅡwas invented. This production was the world’s first mass-market personal computer.
The iMac
Under Job’s leadership, Apple introduced the all-in-one iMac computer in 1988. The iMac became the first machine which offered only a CD-ROM slot (插槽).
The iPad
By 2010, Steve Jobs was confident that the world was ready to have a tablet computer that would be great for watching movies and playing games. The touch-sen-sitive iPad was a great success.
The iPhone 4s
The iPhone 4s came out on October 4, 2011, in America. It looks like the iPhone 4. It has a larger and wider screen and a slimmer yet wider case. It has a better camera and faster data transfer (数据传输) speeds.
小题1:When was the AppleⅡinvented?
A．In 1976B．In 1977.C．In 1998.D．In 2010.
小题2:Which of the following was the iMac which came out in 1988 different from others?
A．People could play games on it.
B．It offered only one CD-ROM slot.
C．It had one camera in it.
D．It had a larger screen.
小题3:What was the latest product?
A．The iPhone 4s.
B．The AppleⅡ.
C．The iPad.
D．The iMac.
小题4:From the passage, we can know that the iPad           .
A．has a better camera
B．is the first personal computer
C．has a CD-ROM slot
D．is great for watching movies
小题5:According to the passage, which of the following about the iPhone 4s is TRUE?
A．Its screen is the same size as the iPhone 4.
B．It has a smaller screen and slimmer case than the iPhone 4.
C．It has a larger screen and a better camera than the iPhone 4.
D．It uses more time to transfer the same date than the iPhone 4.
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单项选择题

急性乳腺炎最常见的致病菌是

A．溶血性链球菌
B．肺炎球菌
C．白色葡萄球菌
D．厌氧菌
E．金黄色葡萄球菌
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