题目

“”是“”的（ ）A. 充分不必要条件 B. 必要不充分条件C. 充要条件 D. 既不充分也不必要条件 答案：【答案】A【解析】试题根据不等式同向正数可乘性可得；但，不妨取，故“”是“”的必要不充分条件。故A正确。____________professional violinist practices for several hours a day, but____________ violinist has his own way of playing the Beethoven concertA.Each, everyB.Every, eachC.One, aD.All, each