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61.Keys for storage a file

• CTRL+S

• CTRL+O

• CTRL+P

• CTRL+N

• ALT+F4

62.Keys for select all

• CTRL+O

• CTRL+P

• CTRL+A

• CTRL+N

• ALT+F4

63.Keys for close the file

• CTRL+O

• ALT+F4

• CTRL+N

• CTRL+A

• CTRL+P

64.To select noncontiguous object hold down the key

• Bar

• Alt

• Shift

• Ctrl

• Del

65.To select adjacent objects hold down the key

• Ctrl

• Bar

• Alt

• Del

• Shift

66.To delete objects need to select an object and

• Select the command Delete in the context menu

• Select the command Erase in the context menu

• Drag the mouse an object in the Recycle

• Press CTRL+Delete

• Press ALT+Delete

67.The first mechanical computing machine was created

• Charles Babbage

• Blaise Pascal

• lebeov

• Gotting Wilhelm von Leibniz

• Konrad Zuse

68.The first apparatus that was used for calculation is

• Pascaline

• The Analytical Engine

• Abacus

• Mechanical machine

• Calculator

69.Charles Babbage created

• Abacus

• Pascaline

• the mechanical machine

• The Analytical Engine

• calculator

70.Gottfried Wilhelm von Leibniz created

• the mechanical machine

• Abacus

• Pascaline

• The Analytical Engine

• calculator