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31.The inD. the improvement of lefties performanceDheon,密andevenpass以thinksetheengagement.答The idea of “ safety by design" is an important way to cut social media risks while keeping its benefits.DaytoManyInstagram could reduce the algorithmic promotion (算法推广） of harmful posts, while Snapchat couldSome of封ple.Butand 11%meaningfully.Scientistse.In othercolour ofSB. Teens want to avoid real-life communication.D. Bad posts easily lead to cyberbullying.线B. It focuses more on user behaviour.DIt balances social media risks and benefits.高一英语期中试题-6-(共10页）