www服务向用户提供信息的基本单位是( )A.网页 B.文件 C.链接点 D.超媒

题型:单项选择题

问题:

www服务向用户提供信息的基本单位是( )

A.网页

B.文件

C.链接点

D.超媒体文件

考点:职称计算机考试计算机应用能力考试计算机职称考试
题型:单项选择题

用配方法解方程2x2-4x-1=0时,应将其变形为(  )

A.2(x-1)2=1

B.2(x-1)2=3

C.2(x+1)2=1

D.2(x+1)2=3

题型:单项选择题

地铁专用计次卡()、(),超过有效期()。

题型:单项选择题

蝗虫的体表有(  )可以起到保护和支持的作用,还能防止水分散失。

A.皮

B.鳞

C.甲

D.外骨骼

题型:单项选择题

压缩机出口压力1.59MPA指的是表压。

题型:单项选择题



In the early 1970’s, Citibank of New York City became one of the first financial institutions to install ATM’s on a large scale. Since then, the (1) of automated teller machines has increased dramatically. At the time, the bank hoped (2) their operating costs by replacing human tellers with machines. Little did they (3) that the cash machines would become so successful. However, as more banks added (4) automated service through ATM’s, the machines mushroomed all over the world.
To use an ATM, all you need is a (5) issued by your bank. Your bank may also (6) through a credit card, such as MasterCard or Visa. To begin a (7) , you need to insert the card into an ATM and punch in a personal identification number on the (8) . The personal ID number may consist of (9) and can prevent anyone from using the card.
The ATM next flashes instructions on its (10) for carrying out transaction. To get cash, for example, you are instructed to (11) that indicate whether the money should be withdrawn from a checking or a savings account and the (12) . This request is then displayed on the screen. After you press a button to (13) that the information is correct, the ATM goes to (14) .
How safe, you may ask, is banking by ATM The (15) is meant to prevent anyone, no matter who you are, from using a cash card (16) . If you enter the wrong ID number for a card, a message on the screen will (17) . If you fail to produce the correct number for three times, most machines will (18) .As another precaution against (19) , the bank generally limits the amount that may be withdrawn by cash card (20) , say, to $ 200.

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