题目

 Only _______ as an interpreter _______ how important it is to grasp English.    A. when did I work；I realized      B. when I worked；I realized    C. when did I work； did I realize   D. when I worked；did I realize 答案：D大于3而且小于4的一位小数有（　　）个． A、9B、10C、无数个