试题题干
WORD FORMATION
Complete the following sentence with the proper form of the word in the bracket.
(accurate) Computers are used to perform a wide variety of activities with reliability, 
, and speed.
参考答案
试题解析
and前后是并列内容，词性应该相同。所以变accurate为名词accuracy。
句意：计算机被用来执行各种各样的活动，具有可靠性、准确性和速度。