The Internet Explorer button that reloads a webpage you are viewing to see updates since the last time you viewed it, is the ________ button

What cards are added to the computer to add certain functions, such as sound and video?

A) NIC B) Expansion C) Modem D) Ethernet

virtual destructors must be used when:

a. The constructor in the base class is virtual. b. delete is used on a base-class pointer to a derived-class object. c. delete is used on a derived-class object. d. A constructor in either the base class or derived class is virtual.