Oracle Net is responsible for establishing and maintaining the connection between the client application and the server. On the client side， Oracle Net is responsible for which three connectivity issues？（） ["The location of the server.","The Oracle user being connected.","Privileges and role information.","Protocol involved in the connection.","How to handle exceptions and interrupts."]
火场逃生的原则是（） ["抢救国家财产为上","先帮助他人为上","安全撤离、救助结合","逃命要紧"]
公安机关办理治安案件可以采取下列哪些措施？（） ["抽样取证","先行登记保存","扣押","登记"]
如何正确理解舆论监督中要“与人为善”。
蓄电池硫化的主要表现为极板上有较厚的白霜，容量显著下降，充放电时异常。
深度为5的二叉树中至多含有（）点。
