王老师:19139051760(拨打)复制微信 题目 更新时间:2023/4/3 ______ as much as one-fourth of all material harvested is not used. ( )(本题2.0分) A、 The estimate B、 The estimate that C、 They are estimated D、 It is estimated 答案 登录 注册 D、 It is estimated 出自:和学 >> 华北水利水电大学混凝土结构设计原理 华北水利水电大学继续教育学院