【题目】It was not immediately obvious that water was __________to the development of life.
A. fundamentalB. regular
C. unnecessaryD. beneficial
在线课程【答案】A
【解析】
考查形容词词义辨析。A. fundamental基本的、根本的；B. regular规律的；C. unnecessary不必要的；D. beneficial有益的。句意：水是生命发展的基础，这一点还不太明显。根据“to the development of life”可知此处表示“基本的”，故A项正确。