【简答题】看日语汉字,用平假名写其读音。 豊作( )
【判断题】紫外-可见光分光光度计需要将光源的混合光分解为单色光
【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】A.In the 1920' s. B.In the 1930' s. C.In the 1940' s. D.In the 1950' s.
【判断题】1917年美国玛丽·里士满出版了《社会诊断》,标志着社会工作的发端。
【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?...