2. 外语
  3. Most anti-virus programs are scheduled to perform a background check_____ throughout the day on a set schedule.

Most anti-virus programs are scheduled to perform a background check_____ throughout the day on a set schedule.

admin2011-04-03  42
问题 Most anti-virus programs are scheduled to perform a background check_____ throughout the day on a set schedule.
选项 A、periodically
B、periodic
C、periodical
D、period
答案A
解析 在一个完整的句子之后修饰句中某一动词的词语，必须是副词。因此本题选择periodically。
转载请注明原文地址:https://kaotiyun.com/show/Yqid777K
本试题收录于： 托业阅读题库托业（TOEIC）分类
0

托业阅读

托业（TOEIC）

相关试题推荐
随机试题
最新回复(0)