12=b
موجود في ملزمه المعتقل
question is sometimg not answered before
reasearch question
السؤال في الاختبار:
?the reasearch question of an original reaserch topic is usually question that
has not been answered beafore in literature
ملاحظه هذا اجتهاد مني ومو متأكده من الأجابه