2. 专升本
  3. You must be very careful when handling these acids______they are very concentrated.

You must be very careful when handling these acids______they are very concentrated.

admin2012-05-23  74
问题 You must be very careful when handling these acids______they are very concentrated.
选项 A、as
B、when
C、if
D、while
答案A
解析
转载请注明原文地址:https://kaotiyun.com/show/M8GC777K
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)