【单选题】After people have learned that magnets attract things, centuries passed______they took note of the fact that magnets sometimes also repel things.
A.before
B.until
C.after
D.since
网考网参考答案:A
网考网解析:
直译为:“在他们注意到……这一事实之前已经过了几百年,也就是说,几百年以后才……”全句可译为:“人们早已知道了磁体能吸引别的物体,又过了几百年,才注意到磁体有时也排斥别的物体这一事实。”
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