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I am writing for some general information about preventive medicine. Though I am interested in this sphere, I know little about it . Its a wisdom act to get imformation(拼写错误) from you, China ,as the(应该用不定冠词an) authority and professional institution. First, what it concludes is my first (加不定式to)want to know. Second, what it connect with public pepole(拼写错误) through . Third, if advanced preventive medicine make(保持主谓单复数的一致) great progress, how much profit will people get?I am looking forward to your reply. Thank you for(加your) time and consideration. | 
