Pessoas sem manifestaçoes da doença podem teansmitir o HIV?

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

What is responsible for the uneven heating between the poles and the equator on any given day

According to the article, what valid claim came from the national research council? there is no association between fluoride exposure and increased cancer risk in humans. there is a possible link between fluoride exposure and increased cancer risk in humans. there is a definite link between fluoride exposure and increased cancer risk in humans.