导航：题目详情 | 答案解析 | 相关问题 | 最新问题 A．has beenB．has been doingC．has been doneD．has done 学历类 2019-10-16 11:14:57 职称英语 已帮助 人 A．has beenB．has been doingC．has been doneD．has done请帮忙给出正确答案和分析，谢谢！ 热搜：a是b的充分条件,b是a的必要条件吗 答案解析 难度★★☆ 搜索 正确答案：B 相关问题 1、A great deal has been done to remedy the 2020-04-28 2、A great deal has been done to remedy the s 2020-04-27 3、A great deal has been done to remedy the s 2020-04-28 4、A great deal has been done to remedy the s 2020-04-28 5、A great deal has been done to remedy the s 2020-04-27 6、A great deal has been done to remedy the 2020-04-28
