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火灾报警控制器调试使控制器与备用电源之间的连线断路和短路,控制器应在( )s内发出故障信号。
下列属于立法机关的有()
网上采购的优势是什么?
胎移植得到的后代,表现为受体牛的遗传特性。
简述地方性法规、规章之间不一致时的处理办法?
贵重物品保险箱的每个箱子都配备有两把不同的钥匙,需要由饭店和客人同时开启。
一般认为在抗病毒免疫中起最主要作用的是()
森林经营类型
言语交际概念表述正确的有:()
小李用150元钱购买了16元一个的书包、10元一个的计算器和7元一支的钢笔寄给灾区儿童。如果他买的每一样物品数量都不相同,书包数量最多而钢笔最少,那么他买的计算器数量比钢笔多几个?( )
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