【简答题】根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多余选项。 Nobody has ever succeeded in their attempt to stay young and live a very long life. 1_____ But is this really true? Dr Aubrey de Grey thinks that we can stop ...
【简答题】If you do not use your arms or your legs for some time, they become weak; when you start using them again, they slowly become strong again. Everyone knows this, and nobody would think of questioning t...