[问答题] 装配图的作用及内容是什么？

建立和检验理论构思的基本方法是什么？ A WCF service code is implemented as follows. (Line numbers are included for reference only) 01 [ServiceContract] 02 [ServiceBehavior(InstanceContextMode = 03 InstanceContextMode.Single)] 04 public class CalculatorService 05 { 06 [OperationContract] 07 public double Calculate(double op1, string op, double op2) 08 { 09 } 10 } You need to increase the rate by which clients get the required response from the service. What are two possble ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)（） ["","","",""] 操纵室与起重机本体间的接地用4mm×40mm以上的镀锌扁钢，并且不小于（） ["4处","1处","2处","63处"] 某市政府机关职员张某，因涉嫌犯为敌人指示目标罪被立案侦查，后被依法采取强制措施。下列说法正确的是（） ["本案应由公安机关立案侦查","本案应由人民检察院立案侦查","对王某的取保候审应由国家安全机关决定","对王某的取保候审应由国家安全机关执行"] 预制楼梯脱模起吊时混凝土强度允许值应达到（）。 ["A.40% ","B.50% ","C.65% ","D.75%"] 装配图的作用及内容是什么？