On whole, science and technology have been benefiting human beings all through history.
A. a, 不填
B. a, the
C. the, 不填
D. the, the
网友回答
A. a, 不填
B. a, the
(答案→)C. the, 不填
D. the, the
解析:考查冠词:第一空填the,on the whole总得来说,第二空不填,因为history是抽象名词,句意:总的来说,在整个历史中科学技术一直使人们受益。选C。