电缆线路防火有低毒性要求时,电缆绝缘宜采用以下哪些类型。() ["交联聚乙烯","聚氯乙烯","聚乙烯","乙丙橡皮"]
根据地震波探测资料分析,地球内部从地幔到地核都完全是液态熔融的。
新建工程采用以下哪些型号的导线时须执行沟通汇报机制。() ["JRLX\/T-240\/28","JLX\/G1A-400\/50","JL1\/LHA1-535\/240","JLHA3-335\/37"]
政策形成的解释模型一般包括()。 ["过程模型","渐进模型","系统模型","理性综合模型"]
He keeps()at himself in the mirror. ["to look","looking","look","looked"]
晋鄙因为不交出兵权给魏无忌而被谁砸死?