从供选择的答案中选出应填入下列英文语句中______内的正确答案。 Artificial Intelligence (1) a relat
从供选择的答案中选出应填入下列英文语句中______内的正确答案。
Artificial Intelligence(1)a relatively young branch of science, new enough that we can still trace the development of the field from its inception in 1956 to the present. About six years ago, when we(2)planning the Handbook of Artificial Intelligence, we thought it would(3)possible to present AI comprehensively in three volumes. In retrospect, that seems to have(4)a good guess, although, inevitably, the outline(5)changed many times to reflect changes in the emphasis and methods of AL
供选择的答案:
(1)be (2) am (3) are (4) is
(5) was (6) were (7) being (8) been