In your web application，you need to execute a block of code whenever the session object is first created. Which design will accomplish this goal？（） ["Create an HttpSessionListener class and implement the sessionInitialized method with that block ofcode.","Create an HttpSessionActivationListener class and implement the sessionCreated method with thatblock of code.","Create a Filter class， call the getSession（false） method， and if the result was null， then execute that block of code.","Create an HttpSessionListener class and implement the sessionCreated method with that block of code."]
用户在访问Web资源时需要使用统一的格式进行访问，这种格式被称为（）。 ["物理地址","lP地址","邮箱地址","统一资源定位符"]
易氧化和遇光变质，须装在有色密闭瓶中保存的药物是：（） ["糖衣片","巴比妥","地西泮","氨茶碱","胃复安"]
肺脏死亡是指（）先于（）停止所引起的死亡。
病毒采用的触发方式中不包括（）方式。 ["日期触发","鼠标触发","键盘触发","中断调用触发"]
大潮
