国开《综合英语(1)》Unit8 单元练习 形考试题 【题目】In paragraph 4, “a fruitless search” means ____. an effort with no results a search for a diet without fruits research on fruitless diets a diet used as medicine 试题来源综合英语(1) 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！
