题目

. _________ many times, he finally understood it. A. Told         B. Telling      C .Having told     D. Having been told 答案：D（2013?临沂）下列数据中．最符合实际情况的是（　　）A．一位初中生体重约为20NB．人的正常体温为39℃C．初中学生体育测试投掷实心球的距离约为30mD．晓雯上学时步行的速度约是1.1m/s