当前学科:食品科学与工程
  • 题目: 未知类型
    You _____ all those calculations! We have a computer to do that sort of things.

      A.needn't have done

      B.shouldn't have done

      C.must not have done

      D.can not have done

    答案: <查看本题扣1积分>

    查看答案

    答案不对?请尝试站内搜索