【简答题】对下面的文法 G : E→TE' E'→+E| e T→FT' T'→T| e F→PF' F'→*F'| e P→(E)|a|b| ∧ (1) 计算这个文法的每个非终结符的 First 和 Follow ; (2) 证明这个文法是 LL(1) 的 (3) 构造它的预测分析表。
【简答题】Peter: Hi Tom. I would like to introduce a fiend to you. This is Rick. Rick, this Tom. Tom: Nice to meet you, Rick! Rick: Nice to meet you, too! Peter: Rick is from Australia. This is his first trip t...
【简答题】Peter: Hi, Tom. I would like to introduce a friend to you. This is Rick. Rick, this is Tom. Tom: Nice to meet you, Rick! Rick: Nice to meet you, too! Peter: Rick is from Australia. This is his ...
【单选题】Though he is busy, music has always been___his work.
A.
as much a part of his life as
B.
as a part of his life much as
C.
as much as a part of his life
D.
so much a part of his life as
【单选题】设文法G(E): E→E+T|T T→T*P|P P→(E)|i 则FIRST(T)=( )。
【简答题】作为任务分配、自我管理、业绩考核和奖惩实施的目标具有如下特征:层次性、网络性、多样性、___、___、___和伴随信息反馈性。
【单选题】下列属于销售商品业务核算中常涉及的会计科目有( )
【单选题】下列PLC的分类方法中,按结构进行分类的是: