Array ( [0] => Array ( [title] => L13A [link] => https://www.youtube.com/embed/AtXV9fIq3pc ) [1] => Array ( [title] => L13B [link] => https://www.youtube.com/embed/ONcWrAOk-7Y ) [2] => Array ( [title] => L13C [link] => https://www.youtube.com/embed/GhTaRpnJXyc ) [3] => Array ( [title] => L13D [link] => https://www.youtube.com/embed/K-T49Y97Pvw ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第13R講 期中考練習題講解