为了保证安全，在3WC―0.8/12型压缩机（）和（）上分别装一、二级安全阀。
Emerson（）Transcendentalist. ["called himself ","did not like the term","never called himself ","created the term"]
试述技术和知识对经济活动区位的影响。
电线主要采用铜和铝制造，按照有、无绝缘分成哪几类（） ["控制及综合布线电缆","绝缘电线","电力电缆","裸电线"]
以下属于易燃介质的是（） ["氢气","氧气","空气","二氧化碳"]
刑事诉讼中的起诉
