Array ( [0] => Array ( [title] => L22A [link] => https://www.youtube.com/embed/8wG5UaUyOUc ) [1] => Array ( [title] => L22B [link] => https://www.youtube.com/embed/LTYMNoxJSB8 ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第22講 Properties and Reactivities of Common Functional Groups