国开《理工英语2》单元自测3（预备知识：Unit 3；10分） 形考试题 【题目】Mike ________ his computer and checked his E-mail. turned on turned off turned up 试题来源理工英语2 查看整套课程试卷 此内容查看价格为0.2金币，请先登录如有问题，请联系微信客服解决！
