【判断题】When b ( in the LR(1) item A→ a • b ,a ) is not empty, the look-ahead does not have any affect. When b is empty (A→ a •,a ), we do the reduction by A→ a only if the next input symbol is a (not for a...
【简答题】Fill in the blanks by selecting suitable wordsfrom the word bank. You may not use any of the words more than once. A reduction B weld C involved D levy E approaches F enhance ...
Context denotes some physical environment or setting in which we produce or comprehend utterances.
B.
Context refers to some invisible social or mental factors, esp. Social distance, power relations, encyclopedic knowledge and expectations, that affect the production or comprehension of certain utterances.
C.
Context refers to the preceding utterances and/or the following ones.