📚➡️📚📚

#course prerequisite #foundational knowledge #basic before advanced #learning path #academic requirement

📚A➡️📚B

#course prerequisite #academic requirement #study sequence #dependency #basic course #advanced course

📝✅→🎓

#passing requirement #qualification met #credits needed #degree requirement #course completion #academic requirement #assessment passed

🅰️/🅱️➕

#a or b plus #a and b plus #grade combination #blood type combination #result range #academic requirement