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"3 b\u01B0\u1EDBc \u0111\u1EC3 l\u00E0m t\u1ED1t b\u00E0i thi tr\u1EAFc nghi\u1EC7m m\u00F4n GDCD"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.baomoi.com/3-buoc-de-lam-tot-bai-thi-trac-nghiem-mon-gdcd/c/20609922.epi>