The stages within the development phase of the software life cycle are ________. A: design，analysis，implementation，and testing B: analysis，design，implementation，and testing C: analysis，design，testing，and implementation D: design，analysis，testing，and implementation

There are many calculation methods for petroleum reserves in reservoirs, which can be roughly divided into static methods and dynamic methods.

In the process of well testing, every measured pressure and production does not change with time is() A: steady-state well testing B: unsteady test C: Pressure well test D: Constant pressure production well test

The term Dutch Disease was coined in ( ) to explain a sharp decline in the Dutch economy following their discovery of ( )in 1959. A: 1966, natural petroleum reserves B: 1966, natural gas reserves C: 1977, natural petroleum reserves D: 1977, natural gas reserves

________, including load testing and stress testing, helps testers determine the system's robustness. A: Integration testing B: Performance testing C: Requirement testing D: User testing