As each application module is completed,it undergoes（ ）to ensure that it operates correctly and reliably.
- A.unit testing
- B.integration testing
- C.system testing
- D.acceptance testing
正确答案及解析
正确答案
解析
当每个应用程序模块完成后，它将执行单元测试，以确保其正确、可靠地运行，因此选A。
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