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"V\u00EC sao ph\u1EA3i l\u00E0m \u0111\u01B0\u1EDDng cao t\u1ED1c tr\u01B0\u1EDBc \u0111\u01B0\u1EDDng s\u1EAFt cao t\u1ED1c B\u1EAFc-Nam?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.baomoi.com/vi-sao-phai-lam-duong-cao-toc-truoc-duong-sat-cao-toc-bac-nam/c/20485759.epi>