薄板群钻又称三尖钻，其特点是将两（）磨成锋利的刀尖，而且横刃（）成钻心尖，略比刀尖高出（）mm。
You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA， a big file tablespace of size 100 TB on tape drive， but you have tapedrives of only 10 GB each. Which method would accomplish the task quickly and efficiently？（） [" parallel image copy backup"," backup with MAXPIECESIZE configured for the channel"," parallel backup with MAXPIECESIZE configured for the channe"," intrafile parallel backu"]
系统发生短路故障时，系统网络的总阻抗会出现（） ["突然增大","突然减小","网络阻抗忽大忽小的变化"]
女性，25岁，因颈部蜂窝织炎人院。患者颈部肿胀明显，观察中应特别注意下列哪项（） ["呼吸","体温","神志","血压","吞咽"]
下面是幼儿园教研活动的具体开展方式除了（） ["观摩活动","专题讲课","以老带新","集体备课"]
海洋生物疾病病原检测技术主要有哪些？
