/images/1041385860215607387/1192480552188661780/tinh-toan-chi-li-chuong-88-chuong-nay-bi-khoa-boi-tan-giang.txt?ex=65a93b0e&is=6596c60e&hm=b8b9e0e6a1c858d397a40a7fab20bdc9da70c136b136c07cb793972c22ce9a6c&