In one of our textbook readings, a student tells a story of when a foreign teacher asked him a question and his answer was, "Sorry, I don't know." Why did the foreign teacher not like that answer?
A.
Because the answer was incorrect and the teacher wanted the correct answer.
B.
Because the student actually knew the correct answer but didn't want to share which caused the teacher to get angry.
C.
Because western teachers focus on the learning process and would rather have a student say a wrong answer than say they don't know.
【简答题】Suppose that a firm produces three outputs y 1 , y 2 , and y 3 , with three inputs z 1 , z 2 , and z 3 . The input-requirements matrix is given by A [ 1 0 5; 1 1 0; 3 2 6], If the firm wants to produc...