题目内容

考查下列文法:G(VT,VN,E,P)其中:VT=+,*,(,),i)VN=E,T,FE 是开始符号P: E→E+T|TT→T*F|FF→(E)|IF*F+T是该文法的一个句型,其中, (28) 是句柄, (29) 是素短语 (30) 是该句型的直接推导, (31) 是该句型的最左推导, (32) 是该文法的一个句子。 (29)处填()。

A. F
B. F*F
C. F+T
D. F*F+T

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