考虑以下两个语句：
P: Every regular grammar is LL(1)
Q: Every regular set has a LR(1) grammar以下内容哪些是对的?
(A) P 和 Q 都为真
(B) P 为真，Q 为假
(C) P 为假，Q 为真
(D) P 和 Q 都是假的答案： (C)
解释：
A regular grammar can also be ambiguous also
For example, consider the following grammar,
S → aA/a
A → aA/ε
In above grammar, string 'a' has two leftmost
derivations.
(1) S → aA (2) S → a
S->a (using A->ε)
And LL(1) parses only unambiguous grammar,
so statement P is False.
Statement Q is true is for every regular set, we can have a regular
grammar which is unambiguous so it can be parse by LR parser.
So option C is correct choice 这个问题的测验