问题 更新时间2023/4/3 12:59:00 35[单选题,1.3分] In our culture, we are accustomed to sophisticated prescription drugs containing a _____ of chemical ingredients.A.plentyB.varietyC.enoughD.various 答案 登录 注册 参考答案:B 出自:联大 >> 河南大学-本科英语