The development of industry has been ____ gradual process throughout ______human existence, from stone tools to modern technology.
A./, the
B.the, a
C.a, /
D.a, a
答案:C
考察冠词。第一空是泛指工业的发展是一个逐渐发展的过程,第二空的human existence是一个抽象的意义,故使用零冠词。故C正确。
The development of industry has been ____ gradual process throughout ______human existence, from stone tools to modern technology.
A./, the
B.the, a
C.a, /
D.a, a
答案:C
考察冠词。第一空是泛指工业的发展是一个逐渐发展的过程,第二空的human existence是一个抽象的意义,故使用零冠词。故C正确。