企业制造费用分配方法一经确定，不得随意变更。（)

A.integration testing, unit testing, system testing, validation testing

B.validation testing, unit testing, integration testing, system testing

C.unit testing, integration testing, validation testing, system testing

D.system testing, validation testing, integration testing, unit testing

Unit Testing and Component Testing --A software unit

represents a small unit of software of functionality. 【S1】______

Because a unit typically is the work of one programmer. 【S2】______

That unit Testing focuses on the programming logic within the 【S3】______

unit, while that ignoring the interaction with other components. 【S4】______

Called components are replaced with stubs, simulators, or with 【S5】______

trusted components and calling components are replaced with 【S6】______

drivers or trusted super-components.

A software component is in the integration of one or more software 【S7】______

units. Though it performs one or many meaningful tasks. 【S8】______

Component testing is similar to unit testing but where the 【S9】______

interaction is with other components but not stubs or simulators. 【S10】______

Unit and component testing are usually performed by software 【S11】______

developers. If the development of a component involves one

developer, as unit testing and component testing are combined. 【S12】______

A、Unit testing

B、Module testing

C、System testing

D、Regression testing

UCIC：英文全称()中文释义()

●Unit testing refers to that each (73) is tested to ensure that it operates correctly.

(73)

A. subsystem

B.device

C.application

D.module