______in four different countries,Jessie is a typical third culture kid,the term of which refers to

children who spend a period of time in one or more cultures. [ ]

A. Bring up    

B. Having brought up    

C. Bringing up            

D. Brought up

软件测试是软件开发过程中重要且不可缺少的阶段，测试过程中的______是基础测试。

A．系统测试

B．有效性测试

C．单元测试

D．集成测试