2. 职称英语
  3. After people have learned that magnets attract things, centuries passed______the

After people have learned that magnets attract things, centuries passed______the

游客2025-03-18  15
问题 After people have learned that magnets attract things, centuries passed______they took note of the fact that magnets sometimes also repel things.
选项 A、before
B、until
C、after
D、since
答案 A
解析 before应该理解成(几百年过去了，人们)才……；如果用after应该是…after cen—turies passed they took note of the fact…；如果用until，应该是they didn’t take note ofthe fact that．．．until centuries passed。
转载请注明原文地址:https://tihaiku.com/zcyy/4002310.html
相关试题推荐
随机试题
最新回复(0)