单选题
发布日期:2021-03-22
chemical ignition
spontaneous combustion
chemical combustion
radiation ignition
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Mr. Smith feels greatly _____ with his son’s performance in school as he is always the top of his class.
如果车间没有热气流的影响,当散发的有害气体密度比空气密度大时,应当采用上下两个部位同时排出的方式,并在中间部位将清洁空气直接送到工作地带。
血液净化技术不仅仅用于慢性肾衰竭的替代治疗,且已广泛用于下列多种危重病的治疗,除外()。
下列文件中属于上行文的是()。
企业内联网是以()技术构建的运作企业内部的管理信息系统。
关于敷设在管道竖井内的燃气管道的安装,描述正确的是()
平面力偶系可简化为()。
根据资料(1)至(3),月末完工产品的总成本是( )元。
游乐设施每天运营前空载试机运行应不少于()次,确认一切正常后,才能开机营业。
改正下面句子中的语法错误并说明理由。 (1)最近,博物馆展出了两年多年前的刚出土的战国青铜器。 (2)他最近工作比较辛苦,脸越发很清瘦了。
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