Trong mô hình hai quốc gia (1, 2) và hai sản phẩm (X, Y): Năng suất X và Y của Quốc gia 1 là x1 và y1; của Quốc gia 2 là x2 và y2. Yêu cầu của qui luật lợi thế so sánh sẽ không thực hiện được khi: a) x1.x2 = y1.y2 (x1 ≠ x2 ≠ y1 ≠ y2).
b) x1.y1 = x2.y2 (x1 ≠ x2 ≠ y1 ≠ y2).
c) x1.y2 = x2.y1 (x1 ≠ x2 ≠ y1 ≠ y2).
d) Cả ba câu trên đều sai.

What is a sales lead? a. an employee on the customer service team who deals with existing customers b. a sales person who works on a residual commission structure c. an expert in maslow's hierarchy of needs d. a potential customer who has shown interest in the company's product

George wants to collect funds to open his own bakery from his family.  he needs an accurate estimate of how much money he would require to run the bakery for at least six months.  he has to buy a shop  (costing $3,500)  and buy an oven  (costing $600).  his  start-up  costs, including various utility costs, would be  $300.  he has calculated his monthly expenses as  $250.  how much money would george require to start his business and run it for at least six months? a.  $3500b.  $5,900c.  $7,200d.  $7,400e.  $8,200its not c.7200 tried it

Baylaine is a company that sells affordable, low-end cell phones. baylaine's customers can register product or service complaints with the company through emails; the company's customer support team replies to customer queries and complaints within five hours of the receipt of an email. in the context of customer relationship management, baylaine most likely establishes with its customers.