Array ( [0] => Array ( [title] => L2A [link] => https://www.youtube.com/embed/3bNSLSez3HE ) [1] => Array ( [title] => L2B [link] => https://www.youtube.com/embed/_bQlXdmeG2A ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第2R講 Boolean Algebra and Logic Gates