MgO晶体属NaCl型结构，由一套Mg的面心立方格子和一套O的面心立方格子组成，其一个单位晶胞中有（）个MgO分子。 ["2","4","6","8"]
国家教育权是指国家机关及其工作人员，为实现一定的教育目的，依法对教育行使的领导和管理的权力。
致癌试验
药品生产的岗位操作记录应由（）及时填写。 ["班长","工艺员","QA人员","岗位操作人员"]
In which of the following BGP-related events is an End-of-RIB （EOR） message sent？（） ["Following a link flap in the BGP speaker’s AS","During initial convergence.","Following a Route Processor Switchover.","Just before sending a CEASE message to tear down the session.","During capability negotiatio"]
放射鲕
