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【简答题】
设有下列文法(其中S是开始符号)： (1)S→SaSb｜ε (2)S→A A→AB｜ε B→aB｜b (3)S→(X S→E]｜F) X→E)｜F] E→A F→A A→ε 证明它是否为LL(1)文法，是哪类LR文法?
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举一反三
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