[单项选择]Computer is a complex consisting of two or more connected computing units，it is used for the purpose of data communication and resource sharing．
A. storage
B. device
C. network
D. processor

[单项选择]Computer is a complex consisting of two or more connected computing units，it is used for the purpose of data communication and resource sharing．
A. storage
B. device
C. network
D. processor

[单项选择] (74) is a complex consisting of two or more connected computing units, it is used for the purpose of data communication and resource sharing。
A. Computer network B. Computer device
C. Computer processor D. Computer storage

[单项选择]Computer software
As more and more companies are using the Internet to do business, Mark Williams explains how a new software package is helping the efficient transfer of medicines from factory to patient.
AHL Pharmaceuticals is one of Britain’s largest wholesale distributors of medicines. Under a European parent company, Setra AG, it covers 40 per cent of the British market. The company buys medicines from the manufacturers and delivers them on a twice-daily basis to hundreds of hospitals and pharmacies around the country.
’The responsibility for supplying such large quantities of medicines is frightening,’ says IT director, Stephen Smith. ’If a manufacturer has quality control problems, creating a shortfall in supply, or if medicines are suddenly needed in large quantities somewhere else in the world our stock levels can fall dramatically. In the past such a lack of balance between supply and demand was a huge problem. With our new software system, we know immediately
A. manufactures medicines.
B. puts drug companies in contact with customers.
C. supplies medicines to customers.

[单项选择]
More and more, the operations of our business, governments, and financial institutions are controlled by information that exists only inside computer memories. Anyone clever enough to modify this information for his own purposes can reap substantial rewards. Even worse, a number of people who have done this and been caught at it have managed to get away without punishment.
It’s easy for computer crimes to go undetected if no one checks up on what the computer is doing, but even if the crime is detected, the criminal may walk away not only unpunished but with a glowing recommendation from his former employers. Of course, we have no statistics on crimes that go undetected but it’s disturbing to note how many of the crimes we do know about were detected by accident, not by systematic inspections or other security procedures. The computer criminals who have been caught may have been the victims of uncommonly bad luck.

A. it is still impossible to detect computer crimes today
B. computer crimes are the one of most serious problem in the operation of financial institutions
C. computer criminals can escape punishment because they can’t be detected
D. people commit computer crimes at the request of their company