2. 专升本
  3. Over the past few years medical researchers______for a means of controlling the virus.

Over the past few years medical researchers______for a means of controlling the virus.

admin2012-05-24  54
问题 Over the past few years medical researchers______for a means of controlling the virus.
选项 A、have searching
B、are searching
C、have been searching
D、search
答案C
解析
转载请注明原文地址:https://kaotiyun.com/show/6wGC777K
本试题收录于： 英语题库普高专升本分类
0

英语

普高专升本

相关试题推荐
随机试题
最新回复(0)