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Dr. Kevin L. had very strong knowledge in chemistry, especially organic chemistry. Dr. L was a Professor of Chemistry in China and worked in US pharmaceutical industrial for 14 years. Currently, Kevin is working for a Pharmaceuticals Consulting firm as a consultant in medicinal and process chemistry; he is also working in a local university as adjunct faculty. Dr. L is very enjoying his professional tutoring in all chemistry courses and mathematics courses algebra, precalculus and calculus.Dr.