装配完成后,都应保证各密封处()。 ①严密 ②不漏水 ③不漏油 ④不漏气A、①②③B、①③④C、②③④D、①②③④
装配完成后,都应保证各密封处()。 ①严密 ②不漏水 ③不漏油 ④不漏气
- A、①②③
- B、①③④
- C、②③④
- D、①②③④
相关考题:
ClicktheExhibitbutton.Assumingthetaglibraryintheexhibitisimportedwiththeprefixstock,whichcustomtaginvocationoutputsthecontentsofthevariableexposedbythequotetag?() A.;stock:quoteensp;symbol=;SUNW;ensp;/;${var}B.${var}.ensp;;stock:quoteensp;symbol=;SUNW;ensp;/;C.;stock:quoteensp;symbol=;SUNW;;.ensp;${var}.ensp;;/stock:quote;D.;stock:quoteensp;symbol=;SUNW;ensp;var=;quote;ensp;/;${quote}
WhichmethodintheThreadclassisusedtocreateandlaunchanewthreadofexecution?() A.ensp;Run();B.ensp;Start();C.ensp;Execute();D.ensp;Run(Runnableensp;r);E.ensp;Start(Runnableensp;r);F.ensp;Execute(Threadensp;t);
Properties类中的哪个方法可以和IO流相关联()。A、ensp;getProperty()B、ensp;setProperty()C、ensp;load()D、ensp;stringPropertyNames()
Which method in the Thread class is used to create and launch a new thread of execution?()A、ensp;Run();B、ensp;Start();C、ensp;Execute();D、ensp;Run(Runnableensp;r);E、ensp;Start(Runnableensp;r);F、ensp;Execute(Threadensp;t);
单选题Click the Exhibit button. Assuming the tag library in the exhibit is imported with the prefix stock,which custom tag invocation outputsthe contents of the variable exposed by the quote tag?()A ;stock:quoteensp;symbol=";SUNW";ensp;/;${var}B ${var}.ensp;;stock:quoteensp;symbol=";SUNW";ensp;/;C ;stock:quoteensp;symbol=";SUNW";;.ensp;${var}.ensp;;/stock:quote;D ;stock:quoteensp;symbol=";SUNW";ensp;var=";quote";ensp;/;${quote}
判断题气缸垫保证结合面处有良好的密封性,装配时应注意将淤滑的一面朝向气缸体,否则容易被燃气冲坏气缸垫。A对B错