They are trying to identify what is wrong
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They are trying to identify what is wrong with the present system.
A:prove B:discover C:consider D:imagine
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答案：B
本句意思：他们正努力找出目前系统出了什么问题。identify找到，发现。prove证明，证实；discover发现，发觉，找到；consider考虑，认为；imagine想象，设想。