并列题名：Research of catering Research of catering 并列题名：Research of drawing 并列题名：Research of thinking 并列题名：In search of meaning 并列题名：In search of old Peking 并列题名：Research of city center planning 并列题名：In search of western learning 并列题名：Research on software refactoring 并列题名：On research of crystal synthesis