5. вставьте в текст слова по смыслуrepresent, primary, simultaneously, generalized, sacrificed, distribution, the supply, the demand, feasible, satisfies, infeasible, efficiency, simplification a ppf shows all possible combinations of two goods that can be produced ( during a given period of time, ceteris paribus. commonly, it takes the form of the curve on the right. for an economy to increase the quantity of one good produced, production of the other good must be ( let´s consider a hypothetical economy where butter production must be sacrificed in order to produce more guns. ppfs ( how much of the latter must be sacrificed for a given increase in production of the former. such a two-good world is a theoretical ( necessary for graphical analysis. if one good is of ( interest, all others can be represented as a composite good. in addition, the model can be ( to the n-good case using mathematics. assuming that ( of the economy's factors of production does not increase, making more butter requires that resources be redirected from making "guns" to making "butter". if production is efficient, the economy can choose between combinations (i.e. points) on the ppf.

English : Dolphins-aquatic mammals of the suborder toothed whales. Dolphins, like all cetaceans, breathe air periodically floated to the surface. Feed mainly on fish and squid, although some prefer the shrimp and other crustaceans, and killer whales also eat sea turtles, aquatic mammals and birds. The majority of dolphins, males are larger than females and in some species are distinguished from them by higher dorsal fin. Known individuals under the age of 50 years, although in most species the maximum life expectancy of 20-25 years.
Перевод на русский : Дельфины-водные млекопитающие подотряда зубаcтых китов. Дельфины, как все китообразные, дышат воздухом, периодически всплывать на поверхность. Питаются в основном рыбой и кальмарами, хотя некоторые предпочитают креветок и других ракообразных, а косатки поедают также морских черепах, водных млекопитающих и птиц. У большинства дельфинов самцы крупнее самок и у некоторых видов отличаются от них более высоким спинным плавником. Известны особи в возрасте до 50 лет, хотя у большинства видов максимальная продолжительность жизни 20-25 лет.

Мой друг, мы много пережили вместе,Бывало, даже ссорились порой.Но ведь не зря о ней слагают песни – О нашей дружбе истинной большой!
Желаю счастья, друг мой, в день волшебный,Ты знай – во всем тебя я поддержу!Улыбок, мира, радости, везенья!Я нашей дружбой очень дорожу

My friend, we have gone through a lot together,Sometimes, even often quarreled.But not for nothing is it composed songs -About our friendship true great!
I wish you luck, my friend, the day of the magical,You know - in all I will support you!Smiles, peace, joy, luck!I really cherish our friendship!