起重布料两用机的吊装和布料两项作业可以同时进行。
使用冷粘法时，对接缝口处进行封严的密封材料的宽度不应小于（） ["5mm","10mm","15mm","20mm"]
混凝土泵按照机动性分为柱塞式和挤压式两种。
Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.)（） ["It is locally significant.","It is globally significant.","It is needed to identify a unique instance of an OSPF database.","It is an optional parameter required only if multiple OSPF processes are running on the router.","All routers in the same OSPF area must have the same process ID if they are to exchange routing information."]
设备冷却有水冷、（）冷及风冷。
学校管理工作评价有哪些基本原则？
