毛泽东指出，中国革命的历史进程，必须分为（）。 三步。 五步。 两步。 四步。
You are developing a Windows Communication Foundation (WCF) service to provide an in-memory cache for many Web applications.The service contract is defined as follows. (Line numbers are included for reference only.) 01 [ServiceContract] 02 public interface IDataCache 03 { 04 ... 05 }06 07 08 public class DataCache : IDataCache 09 { 10 ... 11 } You need to ensure that all users share the cache. Which code segment should you insert at line 07?（） [ServiceBehavior(TransactionIsolationLevel = IsolationLevel.RepeatableRead)]。 [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]。 [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)]。 [ServiceBehavior(TransactionIsolationLevel = IsolationLevel.ReadComitted)]。
根据《固定式压力容器安全技术监察规程》，压力容器所选用的压力表，其表盘直径不得小于（）。 100mm。 150mm。 200mm。 250mm。
You develop a Windows Communication Foundation (WCF) service that uses basic authentication for client credentials. This service is currently configured to use message security. The service is hosted on a server in workgroup mode.Users report that their passwords are stolen when they use public computers.You need to ensure that messages are secure and users are authenticated.You prevent the service from being called over HTTP through Microsoft Internet Information Services (IIS) configuration. What should you do next?（） Use the transport security mode and specify None for transport client credential type.。 Use the transportWithMessageCredential security mode and specify Basic for the transport client credential type.。 Use the message security mode and specify Basic for the transport client credential type.。 Use the transportWithMessageCredential security mode and specify None for the transport client credential type.。
在国际贸易中，常见的计重方法有（）。 毛重。 净重。 公量。 理论重量和法定重量。
柴油机冒白烟的原因（）。
