◎ 题干
  As we all know, Jack is experienced _____ the problem of this kind.
A.to work out B.at working C.at working out D.for working out
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“As we all know, Jack is experienced _____ the problem of this kind.A.to work outB.at workingC.at working outD.for working out…”主要考查了你对  【动词短语】【动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。