In top-down grammatical analysis, analysis should start from ()。
A: sentence
pattern
B: sentence
C: grammar start symbol
D: handle
A: sentence
pattern
B: sentence
C: grammar start symbol
D: handle
举一反三
- The sequence of grammar symbols derived from the beginning symbol of the grammar after several steps (including 0 step) is called( )。 A: language B: Sentence<br/>pattern C: Sentence D: Handle
- A context-free grammar G consists of four parts: a group of nonterminals, a group of terminals, a start symbol, and a group of (). A: sentence B: sentence pattern C: word D: Production
- In the sentence "We have to start the project from scratch" the phrase "from scratch" means ____.
- A meaningful sentence should be grammatical in the first place.
- Predication analysis is a way to analyze___________ meaning.C A: phoneme B: word C: phrase D: sentence