单选题
发布日期:2021-03-22
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调整状态下、JZXC-480轨道电路在道岔区段或一般无岔区段,轨道继电器交流端电压应调整在()V之间。
张经理在绩效评价中出现的误区有( )。
已知三个不相等的数a、b、c,试给出寻找这三个数中最大的一个算法,画出该算法的流程图。
影响农作物农药残留的因素有()
重金属对微生物产生的主要危害是()
下列事例中.利用热传递改变内能的是( ).
肺痿的病因可分下列几个方面()
劳动合同订立制度中“用工”与“签约”各自的法律意义以及相互关系。
地区电缆接头芯线扭绞总长为()mm。
紊流可以是均匀流,也可以是非均匀流。
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