/images/1041385860215607387/1292542317127012453/trung-sinh-2011-dai-hoc-hang-hai-kiem-lau-985-chuong-456-toan-cau-bo-cuc-cho-tsmc-vien-dan-boc-duong.txt?ex=67041d56&is=6702cbd6&hm=17f35d8941104c07639961aade79f62dc517a8e28b921c5b63b1cf30c8114249&