[多选] 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？（）
A . The location of the server. B . The Oracle user being connected. C . Privileges and role information. D . Protocol involved in the connection. E . How to handle exceptions and interrupts.
中心引线为正极，外壳为负极的二极管为负二极管。
精神科最为常见的危机事件是（） 出走行为。 自伤自杀行为。 暴力行为。 吞食异物。 噎食。
终极的紧急关断系统分几级？
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。
要改变一个对象的高度，应使用属性（） Font。 ForcColor。 Name。 Height。
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？（）
