练习册

  • 练习册
  • 试题
    Radioactive matter is dangerous to work because it has a bad effect the blood. A. for; on B. at; to C. with; on D. with; to 【查看更多】

     

    题目列表(包括答案和解析)

    Radioactive matter is dangerous to work with because it has a bad effect ____the blood．

         A． to             B． for       C． in        D． on

    查看答案和解析>>


    同步练习册答案