2022英语周报8年级，第九期答案

第一节Is Distance Learning Really Beneficial?With the development of the Internet distance learning is gaining more andmore popularity among students many of them are addicted to online lessons Isdistance learning really beneficial?In my opinion, distance learning has some advantages. As we know, it is vividand flexible because of video materials and adjustable schedules. however itsdisadvantages should be equally paid attention to. Firstly it isn't suitable forstudents who prefer direct communication with teachers Worse still, studyingonline too long greatly harms students' eyes. So students should weigh theadvantages and disadvantages and use distance learning properly.

13.C【解析】本题主要考査氧化还原反应,侧重考查学生分析和解决化学问题的能力。质量不守恒,A项错误;a点溶液中c(Na)>c(CO),B项错误;温度不变,HClO的电离平衡常数不变,D项错误

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