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Is Dr. Zhang's physical examination online?

Dr. Zhang's physical examination tutorial class is quite good. Anyway, I think so. I'm not afraid of jokes. My assistant took the exam for four years, and people like me must have experienced the ups and downs. In the last year, I passed the exam with the help of the remedial class in dr. zhang. Assistant 18 1 passed the exam (fractional line 180), although I only got one more point. No pains, no gains. As long as you study hard, you will pass the exam.