暑期期间列车安全检查应做到（） ["对“两炉、一灶、一电”及防火设施进行检查","加强对列车乘务人员熟知“危险品”种类等知识的教育","检查暑运客流调查与组织工作准备","列车上要健全防火组织，强化防火设施检查"]
叠合梁表面清理干净后，应在混凝土浇筑前（）吸干积水。 ["0.5h","1h","2h","3h"]
If a switch is working in the fail-open mode， what will happen when the switch’s CAM table fills to capacityand a new frame arrives？（） ["A copy of the frame is forwarded out all switch ports other than the port the frame was received on.","The frame is transmitted on the native VLAN.","The switch sends a NACK segment to the frame’s source MAC address.","The frame is dropped."]
按其性质和特点，事业单位可分为具有非政府公共机构性质的事业单位，具有一定经济效益的公益性事业单位和具有生产经营性和能力的事业单位三种。
烧结所用的石灰石粒度一般要求在（）毫米的含量大于90%。 ["0～3","0～5","0～8","0～2"]
在评价过程中，被评价者产生的主要障碍心理现象有哪些？
