According to your textbook, if you quoted Dwayne Martinez, a Deepwater Horizon oil rig worker, on what happened in the moments after the BP Gulf of Mexico explosion, you would be using ________ testimony.

A search engine like Dogpile that searches other engines is a

A. standard search engine. B. hierarchical index. C. alternative search engine. D. metasearch engine.

Which statement best describes visual aids?

A) ?They are primarily decorative additions to a speech. B) ?They are a powerful means of support for a presentation. C) ?They may be in the form of a video clip. D) ?They help the audience understand the main ideas of the speech. E) ?They help engage the audience.