I think they are implied. Like your example with the Dr Pavel scene, we see glimpses of the traditional Bane characteristics. He is obviously very intelligent. He does do those calculations; plus, he is obviously a brilliant strategist. Personally, I think he invented (or at least co-invented) his mask system, and probably worked on the anesthetic mix the mask delivers to his system. He is also obviously very well traveled and I would think that means that he does speak multiple languages. So yeah, I think Nolan’s Bane is actually not as much of a departure from the comic Bane as people sometimes argue. There are little clues along the way that evoke the traditional notions of Bane.
(By the way, sorry about the late reply! I am getting to all asks and working on some more posts. I have been really busy at work lately and I feel really bad about how terrible I have been at running this blog lately. I’m working on getting my act together, so thanks to everyone for their patience!)