\u0110\u00e1nh \u0111\u1ec1 chu\u1ea9n, ch\u1ecdn s\u1ed1 \u0111\u1eb9p b\u1eb1ng c\u00e1ch n\u00e0o?<\/span> Ph\u01b0\u01a1ng ph\u00e1p soi c\u1ea7u xsmb gi\u1ea3i \u0111\u1eb7c bi\u1ec7t m\u1edbi nh\u1ea5t l\u00e0 g\u00ec? C\u00e1ch soi \u0111\u01a1n gi\u1ea3n. K\u1ebft qu\u1ea3 soi c\u1ea7u tri\u1ec7t \u0111\u1ec3. \u0110\u1eb7c bi\u1ec7t \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1ebd cho hi\u1ec7u qu\u1ea3 cao tuy\u1ec7t \u0111\u1ed1i. <\/span><\/p>\n
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