Item 2 Which cells in the human body does HIV attack?

the cells of the mucous membranes

the cells of the immune system

the cells of the liver

bacterial cells invading the body

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.