Which four occur during the processing of a request using Oracle Shared Server？（） ["The dispatcher returns the response to the user.","The dispatcher places the request into the request queue.","The shared server places the response in the response queue.","The response is handed off to the next available dispatcher.","A shared server picks up the request from the request queue and processes the request."]
下面关于负载均衡描述不正确的是（） ["负载均衡可以横向扩展服务器，提高网站相应速度","用APACHE可以实现硬件负载均衡","软件负载均衡成本低于硬件负载均衡","硬件负载均衡效率高于软件负载均衡"]
开标过程的招标投标监察工作内容包括（） ["招标人标底（或者标底产生办法）是否唯一","开标时间是否与接收投标文件截止时间为同一时间","开标地点是否为招标文件预先确定的地点","开标程序是否合法、公开、公平、公正"]
一个RTCC可带（）块载频 ["1","2","4","6"]
4ABC 可作为Delphi的变量名。
什么是公称直径DN和公称压力PN？
