Bình luận về mô hình “Chủ nghĩa xã hội thế kỷ XXI” ở các nước châu Mỹ Latinh và bài học kinh nghiệm cho quá trình xây dựng đất nước theo định hướng xã hội chủ nghĩa của Việt Nam.

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.

i am confused, what is the question? i can you out if you put it into more depth.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer