When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）. ["filter to remove the fuel oil","use the settler to remove the fuel oil","remove the fuel oil by centrifuging","drain and then renew the lube oil supply"]
（）是这解决世界能源安全、环境污染和温室气体排放问题的治本之策。 ["加快建设以特高压电网为骨干网架、输送清洁能源为主导的坚强智能电网，形成世界各国电网互联互通，配置能力强、安全可靠性高、服务范围广、绿色低碳的能源优化配置平台","全面推进清洁替代和电能替代，在能源开发上以清洁能源替代化石能源，实现从化石能源为主向清洁能源为主转变","在能源消费上以电代煤、以电代油，提高电能在终端能源消费中的比重","不断加大传统化石能源的开发与利用"]
计算机网络的发展至今已有40多年的历史，现阶段已经发展成（）。 ["具有通讯功能的多机系统阶段","以共享资源为主的计算机网络阶段","Internet时代","以局域网及其互连为主要支撑环境的分布式计算机阶段"]
After a person has been revived by artificial respiration，he should be（）. ["walked around until he is back to normal","given several shots of whiskey","kept lying down and warm","allowed to do as he wishe"]
PowerPoint 2003中，下列说法正确的是（）。 ["打印演示文稿时，打印内容栏中选择“讲义”，每页打印纸能输出默认6张的幻灯片","点击“视图”→“网格和参考线”可以在编辑幻灯片时显示网格线","撤消的操作还可以再恢复","每张幻灯片都可以添加编号","幻灯片中不能插入自动更新的日期"]
什么是专业化商品战略？
