下列工业管道应在机械清扫及酸洗合格后、系统试运转前进行油清洗的管道系统有()。
A.润滑油管道
B.密封油管道
C.控制油管道
D.不锈钢管道
参考答案:A, B, C
低温的主要适应证有()
A.心血管手术
B.神经外科手术
C.脑外科手术
D.创伤大,出血多的手术
E.恶性高热
Open Shortest Path First(OSPF)is a (71) routing algorithm that (72) workdone on the OSI IS-IS intradomain routing protocol.This routing,as compared todistance—vector routing,requires (73) processing power.The Dijkstra algorithm is usedto calculate (74) OSPF routing table updates only take place when necessary, (75) atregular intervals.
A.more B.less C.same D.most