The Internet is an open system，and most information is available to everyone.It is very important to add( )to existing system for protecting the secret information.

[单选题]The Internet is an open system，and most information is available to everyone．It is very important to add(74)to existing system for protecting the secret information．A．Web pagesB．modemC．securityD．network

[单选题]The Internet is an open system, and most information is available to everyone. It is very important to add ______ to existing system for protecting the secret information.A．web pagesB．modemC．securityD．NetworkA．B．C．D．

[单选题] The Internet is an open system, and most information is available to everyone. It is very important to add (74) to existing system for protecting the secret information.(74)A． Web pagesB． modemC． securityD． network

[单选题]The computer system _________ suddenly while he was searchingfor informatio

[单选题]The computer system _________ suddenly while he wassearching for informatio

[单选题]The following information is available for a manufacturing company which produces multiple products:(i) The product mix ratio(ii) Contribution to sales ratio for each product(iii) General fixed costs(iv) Method of apportioning general fixed costsWhic

[多选题] Insurance is very important to logistics because of the potential hazards and dangers in the process,such as（）.A . fireandtheftB . unqualifiedproductsC . techniqueproblemD . andevennaturaldisasters

[单选题]It is very important that each cylinder should be （） scavenged before the charged air is compressed.A . wellB . goodC . excellentD . respectively

[单选题]It is important that the water （） very often as this can lead to increased deposits.A . not be changedB . be changedC . should not be changedD . should be changed

[试题](e) Internal controls are very important in a complex civil engineering project such as the Giant Dam Project.Required:D．escribe the difficulties of maintaining sound internal controls in the Giant Dam Project created by workingthrough sub-contractors