Pulsedlight（PL）applicationsarelimitedtothesurfacesofproducts（）

We have only one vacancy, but so far have received more than 30 () for the job.

A、applications

B、applicants

C、applicators

D、appliances

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You need to ensure that users can view content in a book-reading format that displays two pages at a time.Which control should you use？（）

A.FlowDocument

B.FlowDocumentReader

C.FlowDocumentPageViewer

D.FlowDocumentScrollViewer

The writer says the application form. is useful because it

A．reveals something of the applicant's character.

B．gives information about the applicant's family.

C．explains whet skills the applicant has for the job.

D．shows how much the applicant wants to earn.

A.10

B.15

C.20

D.30

More sophisticated robots with intelligence are made possible by______.

A．the broader application of robotics

B．the availability of robots across the world

C．the technological progress in the field

D．the ever decreasing cost of computing power

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You write the following code fragment. (Line numbers are included for reference only.)You need to ensure that a video file begins to play only when a user clicks Play.Which code fragment should you insert at line 06？（）

A.

B.

C.

D.

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.You write the following code fragment.You need to implement the MyProject.MyConverter class.What should you do？（）

A.Implement the IValueConverter interface.

B.Implement the IMultiValueConverter interface.

C.Inherit from the TypeConverter class.

D.Apply the TypeConverterAttribute attribute.

We may infer from the second paragraph that

A．DNA technology has been widely applied to history research.

B．in its early days the U.S. was confronted with delicate situations.

C．historians deliberately made up some stories of Jefferson's life.

D．political compromises are easily found throughout the U.S. history.