70 years of opening-up in China's education 并列题名：70 years of opening-up in China's education 40 years of opening-up in China 并列题名：40 years of opening-up in China 70 years of opening up in the People's Republic of China 170 years of photographic innovation 20 years of innovation in vocational education in China 并列题名：70 years of opening up in the People's Republic of China