填空题

Many people throughout the world are worried about their computers. They fear the machines have been (36) by a virus. A virus is a program that could destroy all the information the computers contain. It can remain (37) in a computer for a long time and then without warning it can destroy. It is (38) to a virus in the body that does not immediately cause disease. Nobody knows who created the (39) computer program, but it is known that the virus (40) from computer to computer through the (41) of programs that secretly carry it. If the virus becomes active, it could do a lot of damage. For example, it could cause companies or hospitals to lose all of their important (42) . Some experts have tested the virus and they say it will become active only if the computer is turned on when the computer’s clock (43) March 6th. (44) . Computer companies are also selling special programs that can find viruses and deactivate them. (45) .Then no information will be lost if the computer is affected by a virus. People found guilty of spreading viruses may be forced to pay large amounts of money and they could be sent to prison. (46) .