单项选择题 A rhetorician who spends so much of his time studying the famous______of logic is more than likely to produce a few self-evident statements of his own.（）

单项选择题 Throughout the 1940's, the director Orson Welles was considered something of ______in the motion picture industry, as famous for his highly______personality as his inimitable cinematic genius.（）

单项选择题 The view that the yield of rice remains steady is by no means______, owing to the fact that yearly tempests overflowing Asia influence it in______manner.（）