Acid solution（） in the system can be tested from time to time by putting some on to a piece of lime.

[单选题] Configuration management system can be used in defining approval levels for authorizing changes and providing a method to validate approved changes．(74) is not a project configuration management tool．（74）A．Rational ClearcaseB．Quality Function Deploy

[单选题]Configuration management system can be used in defining approval levels for authorizing changes and providing a method to validate approved changes.（）is not a project configuration management tool.A . RationalClearcaseB . QualityFunctionDeploymentC .

[名词解释] 溶液（solution）

[单选题]The best solution to the problem of the spread of bird flu is ______.A． to kill all the birds in an area where bird flu has been discoveredB． to kill all the chickensC． to kill all the birdsD． to kill all the chickens when bird flu has been discovere

[单选题]They hope that a more practical solution can be__________ .A． worked outB． dealt withC． cleared upC． left out

[主观题]角点解（Corner solution）

[名词解释] 角点解（Corner solution）

[单选题]One solution to major security problems is(72) ,which are frequently installed to fix known security holes.A．additionsB．compensationsC．patchesD．complements

[单选题]One solution to major security problems is(75), which are frequently installed to fix known security holes.A．patchesB．compensationsC．complementsD．additions

[单选题]One solution to major security problems is(73)，which are frequently installed to fix known security holes．A．patchesB．compensationsC．complementsD．additions