If Canadian speculators expect the euro to appreciate against the U.S. dollar, they would: A: purchase Canadian dollars B: purchase U.dollars C: purchase euros D: use Canadian dollars to buy euros, instantly use the euros to buy U.dollars, and then instantly use the U.dollars to buy Canadian dollars.

The bank is using the selling rate of USD that means the bank plays the role as a seller of U、S、dollars at this moment、

In a firm， if the net sales are 200 million dollars， the cost of goods sold is 50 million dollars， what is the gross profit？（ ） A: 300 million dollars B: 250 million dollars C: 350 million dollars D: 150 million dollars

He has __________ and he doesn’t mind how costly the car is. A: million of dollars B: millions of dollars C: a million of dollars D: million dollars

In a certain year, the world’s total export value was 1.6 trillion US dollars, and import value was 1.7 trillion US dollars, so the total international trade of that year was （ ） A: $ 3.3 trillion dollars B: $ 1.6 trillion dollars C: $ 1.7 trillion dollars D: $ 0.1 trillion dollars

What is the expected revenue for Huawei in 2020 A: 80 billion dollars B: 150 billion dollars C: 220 billion dollars

Mr. Cog has 18 hours per day to divide between labor and leisure. His utility function is U (C,R) = CR; where C is dollars per year spent on consumption and R is hours of leisure. If he has a nonlabor income of 40 dollars per day and a wage rate of 8 dollars per hour, he will choose a combination of labor and leisure that allows him to spend:

Dollars received in the future are worth _________ than dollars received today. The process of calculating what dollars received in the future are worth today is called _________

The owner of the shop_______ for the old trousers. A: would give Tom six dollars and a half B: would pay three dollars C: would pay five dollars D: would give Tom two dollars

dollars to remain[br][/br] [br][/br]C、 remained 20 dollars [br][/br] [br][/br]D、 remaining 20 dollars