During compressors running the accumulated moisture in the separators must be （）. ["drained off","collected","sent to the crankcases","separated with oil"]
下列立项阶段中不属于模块化立项的内容为（） ["订单","模块化立项编制","地市领导审核","立项批复"]
为什么低温阀门容易发生卡死扳不动的现象。如何解决？
在PowerPoint中如何插入文本框。（） ["“插入”菜单中的文本框","单击绘图工具栏上的文本框按钮","用"Tab"键选定文本框，用光标键移动文本框","按下"Ctrl"键，在幻灯片上用鼠标拖动"]
By far the greatest use is for diesel engine starting using air pressure of 25 bar or more provided by （）. ["rotary compressors","reciprocating compressors","centrifugal compressors","screw compressor"]
简述病症类型的菌脓（溢脓）。
