MCQ Practice Physics 📖 ‘দহন কাল’ উপন্যাসটির জন্য কথাসাহিত্যে ‘বাংলা এক... Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up This question appeared in BB Assistant Director Preliminary Exam Question Bank - 2013 [Bangla] Question 2 Previousডি.এন.এ অণুর দ্বি-হেলিক্স কাঠামোর জনক কে? Nextদোলক ঘড়ি দ্রুত চলে--
