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下列加点字的读音全都正确的一组是( )。
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The biggest safety threat facing airlines today may not be a terrorist with a gun, but the man with the portable computer in business class. In the last 15 years, pilots have reported well over 100 incidents that could have been caused by electromagnetic interference. The source of this interference remains unconfirmed, but increasingly, experts are pointing the blame at portable electronic devices such as portable computers, radio and cassette players and mobile telephones. RTCA, an organization which advises the aviation (航空) industry, has recommended that all airlines ban(禁止)such devices from being used during "critical" stages of flight particularly take- off and landing. Some experts have gone further, calling for a total ban during all flights. (76) Currently, rules on using these devices are left up to individual airlines. And although some airlines prohibit passengers from using such equipment during take- off and landing, most are reluctant to enforce a total ban, given that many passengers want to work during flights. The difficulty is predicting how electromagnetic riel& might affect all aircraft’s computers. (77)Experts know that portable devices emit radiation which affects those wavelengths which aircraft use for navigation and communication. But, because they have not been able to reproduce these effects in a laboratory, they have no way of knowing whether the interference might be dangerous or not. The fact that aircraft may be vulnerable(易受损的)to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. (78) As worrying, though, is the passenger who can’t hear the instructions to turn off his radio because the music’s too loud. What is said about the over 100 aircraft incidents in the past 15 years
这个俱乐部的服务员接受了很多技能培训，小钰是这个俱乐部的一名服务员，所以她接受了很多技能培训。 以下哪项论证展示的推理错误与上述论证中的最相似( )
北华大学随机抽取两个学生样本群体回答一项就业调查提出的问题。一个学生样本群体在回答了问题后的六个月以后，另一个学生样本群体回答了相同的问题，不过，问题排列的顺序做出了调整。两组学生对许多单个问题的回答方式有很大的差别，这表明有时只因排在前面的问题不同就会导致对后面问题的不同回答。 以下最能支持这一结论的是( )。
即使没有出过国，在西方的电影中也常看到这样的镜头：几个人并排走在下水道里，不管是为了逃命，还是为了追凶，人家的下水道宽敞得令人瞠目。如果再深究一下，那些下水道是100多年前、甚至200多年前修建的。再看看我们的下水道，莫说钻人，一头猪如果不幸跑到了下水道，结局也恐怕会很悲惨。我们的下水道狭小不用说，施工质量也难有保障。于是，三天两头挖开修，下水道每修一次，GDP就增长一次，而财富却在悄无声息中被损耗，当然，城市的运行效率也大大降低。西方国家修下水道，一劳永逸，此后虽然再也不能在拉动GDP增长方面作贡献，却在悄无声息中，节约着巨额财富，提升着城市的运行效率，提升着人们的生活质量。 根据这段文字，可以看出作者的意图是( )。
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