Methods of drug administration in order of fastest to slowest CNS response. Intravenous (IV) drug use in which the drug is injected directly into a vein and enters the bloodstream to reach the brain. This is the quickest way of achieving a psycho-active drug effect.
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Explanation:
Letters are any of the 26 letters featured in the alphabet
Characters on the other hand can include all alphabetical letters however it DOES include symbols such as ,*/,?, etc. It can include numbers, underscores, dashes and emoticons as well.
the different between language and dialect is that lenguague is written as well as spoken, while a dialect is just spoken until it is promoted to the elite status usually for political purposes.
This depends on your age and what language you are trying to learn really. Think about it this way, when you were born, how long did it take you to learn English (or your native tongue)? About five years right? This also depends on a bunch of other different factors like how much you practice, your determination, and the fluency of the language your speaking. So really there is no real definite answer because all people are different, but if I were to say, I'd say about five years...
