他们特别发展了我的研究，分析和表达能力，同时为我提供了扎实的管理理论背

他们特别发展了我的研究，分析和表达能力，同时为我提供了扎实的管理理论背景。

Results (English) 1:

They especially developed my research, analysis and presentation skills, and at the same time provided me with a solid management theory background.

Results (English) 2:

In particular, they developed my research, analysis and expression skills, while providing me with a solid background in management theory.

Results (English) 3:

They especially developed my research, analysis and expression ability, and provided me with a solid management theory background.