下列属于高新技术企业认定应提交的申请资料的有（）。 ["高新技术企业认定申请书","企业营业执照副本、税务登记证（复印件）","企业职工人数、学历结构以及研发人员占企业职工的比例说明","具有资质的中介机构鉴证的企业近三个会计年度研究开发费用情况表（实际年限不足三年的按实际经营年限），并附研究开发活动说明材料"]
网上调查受网上受众特征的限制。
初乳
接地线的连接应采用焊接，焊接必须牢固无虚焊。若不宜焊接，可用（），但应进行除锈处理。 ["螺栓压接","卡套压接","压钳压接","卡压连接"]
What kind of information does a router running a link-state routing protocol need to create and maintain its topological database?（） [" LSAs from other routers"," Beacons received on point-to-point links"," hello packets"," Routing tables received from neighbors"," SAP packets sent by other routers"," TTL packets from exclusive router"]
急性毒性试验对受试物应如何处理？
