[单项选择]Computers are already widely used in industry and in universities and the time may come when it______ possible for ordinary people to use them as well.


A. is
B. will be
C. must be
D. may be

[单项选择]Which of the following instruments was widely used before the seventeenth century


A. The harpsichord
B. The spinet
C. The clavichord
D. The organ

[单项选择]

The home computers industry has been growing (21) in the world for the last twenty years. Computers used to be large, expensive machines that (22) very difficult to use. But scientists and technicians have been making smaller and cheaper while at the same time they have been made easier to use. As (23) , their popularity has been increasing as more people have been buying computers for their homes and businesses.
Computers have been designed to store (24) and compute complex problems. Computers are used in (25) traffic in some cities. Stores use computers to keep records of their goods and to send (26) to their customers. Offices use computers to type letters, record business and communicate (27) other offices. People have been using computers in their homes to keep track of expenses and (28) their household appliances on and off.
One important new (29) for computers is for entertainment. Many new game
A. an end
B. a close
C. a result
D. an outcome

[单项选择]Which one of the following is the most widely used measure of inflation （　） 　
A. The Consumer Price Index.
B. The Index of Leading Economic Indicators.
C. The prime rate.
D. The Federal Funds rate.

[单项选择]Ocean transportation is widely- used because it is a relatively low-cost way to transport goods, and it can easily handle large shipments（）
A. 人们喜欢在宽阔的海面上运输货物，因为它价格低可以行大船。
B. 海洋运输被广泛使用，因为很容易用大船运送较为低廉的商品。
C. 人们广泛使用海洋运输，因为它具有运量较大，运费较低的特点。
D. 海洋运输被广泛使用，因为它运量大，虽然花费不低。

[单项选择]When was sugar used widely


A. 3,000 years ago.
B. In modem times.
C. Quite recently.
D. 300 years ago.

[单项选择]These modern computers are used all ___________ the world.


A. on
B. in
C. over

[单项选择]The fifth generation computers, with artificial intelligence, and perfected now.

[单项选择]The use of computers for specialized purposes depends on the（）
A. design of the computer
B. power used to operate the computer
C. difficulty of the mathematical calculations involved
D. the ability of the programmer

[单项选择]A computer network links computers together to allow users to share hardware, software, and (73)
A. resource
B. file
C. information
D. data