_:n4bb378b7e9ab4a1d9e4a106639f20012xb0
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://tuyensinhso.vn/ban-tin-truoc-ky-thi/tong-hop-de-thi-thu-van-toan-anh-cua-nhieu-truong-thpt-nam-2019-c23308.html>