轴向柱塞泵的（）可以调节。 ["转速","流量","容积效率","脉动率"]
经过巡查发现一个用户更换了新的显卡，应该由哪个管理过程负责对这块显卡进行登记（） ["变更管理","配置管理","事件管理","发布管理"]
往复式压缩机气缸内留有一定的内、外止点间隙，是为了克服气缸与活塞热膨胀不一致，避 免活塞端面与气缸端面发生碰撞。
Which four actions are possible during an Online Data file Move operation?（） [" Creating and dropping tables in the data file being moved"," Performing file shrink of the data file being moved"," Querying tables in the data file being moved"," Performing Block Media Recovery for a data block in the data file being moved"," Flashing back the database"," Executing DML statements on objects stored in the data file being moved"]
往复式压缩机连杆大头采用薄壁瓦时，检修时，一般不需要刮研，接触不良时，可稍稍拂刮。
园林树种规划的内容：
