◎ 题干
—What about the student in your class, Mr. Wang?
—The doctor said that          sleep caused him poor memory and poor concentration.
A.lacking ofB.lacked inC.lackingD.lack for
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“—What about the student in your class, Mr. Wang?—The doctor said that sleep caused him poor memory and poor concentration.A.lacking ofB.lacked inC.lackingD.la…”主要考查了你对  【序数词】  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。