Ethel looks up the phone number of a gas station and remembers it just long enough to walk over to the telephone and dial. When she is dialing, the information is contained in her

When a person with persistent depressive disorder has a major depressive episode, it is known as:

a. double depression b. mixed state c. bipolar disorder d. hypomania

In North America, the people who are at greatest risk for HIV infection are

a. men who have had sex with other men. b. heterosexuals with a history of multiple partners. c. people who have shared needles for tattoos or for intravenous drug use. d. all of these.