入选1999年中国十大科技进展的是(以得票多少排序):1我国载人航天工程第一艘试验飞船飞行成功2储氢纳米碳管研究获重大进展3我国科学家发现青藏高原上空存在“臭氧低谷”4我国发现迄今世界最古老的脊椎动物化石5我国推定出夏商周三代纪年6我国首次北极科学考察获硕果7上海医学 Selected among the top ten scientific and technological advances in China in 1999 (sorted by how many votes are counted): 1 The successful flight of the first test ship of China's manned space project 2 Significant progress has been made in the study of hydrogen storage carbon nanotubes 3 Our scientists found that there is “ozone Trough ”4 China found the world's oldest vertebrate fossils so far 5 China presumed Xia Shang Shang Chronology 6 China's first scientific expedition to the Arctic to be fruitful 7 Shanghai Medical