Sinh vi\u00ean c\u00f3 \u0111\u01b0\u1ee3c ki\u1ec7n tr\u01b0\u1eddng n\u1ebfu t\u1ed1t nghi\u1ec7p kh\u00f4ng c\u00f3 vi\u1ec7c l\u00e0m?<\/a><\/blockquote><\/iframe>