江苏开放大学大学英语（C）050329第二单元-过程性考核作业1答案
试题列表单选题题型：单选题客观题分值2分难度：简单得分：21以下为选择题：It is common practice _____ a battery when it still has some life in it.Ato chargeBchargeCchargedDhaving charged正确答案：A题型：单选题客观题分值2分难度：简单得分：22You cannot cancel your
