【简答题】In Europe, people hold the fork in the left hand and the knife in the right throughout the meal, a system that is generally agreed to be more efficient than the American zigzag(曲折的)method. Americans h...
【简答题】The computers changed our lives in the 1980s, the Internet changed our lives in the 1990s, and the robots will change our lives in the new century. Do you think there will be robots in people’s homes?...