[单项选择]

Larry saves x dollars per month. Will Larry’s total savings one year from now exceed his present savings by at least $500 (Assume that there is no interest.)（）
(1)In 6 months Larry’s total savings will be $900.
(2)In 3 months Larry’s total savings will exceed his present savings by $150.

A. 条件（1）充分，但条件（2）不充分.
B. 条件（2）充分，但条件（1）不充分.
C. 条件（1）和（2）单独都不充分，但条件（1）和条件（2）联合起来充分.
D. 条件（1）充分，条件（2）也充分.
E. 条件（1）和条件（2）单独都不充分，条件（1）和条件（2）联合起来也不充分.

[单项选择]Larry saves x dollars per month. Will Larry’s total savings one year from now exceed his present savings by at least $500 ？（）(Assume that there is no interest.)
(1)In 6 months Larry’s total savings will be $900.
(2)In 3 months Larry’s total savings will exceed his present savings by $150.
A. 条件(1)充分，但条件(2)不充分．
B. 条件(2)充分，但条件(1)不充分．
C. 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D. 条件(1)充分，条件(2)也充分．
E. 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

[单项选择]Baby-sitters paid at the ______ of 4 dollars per hour.
A. rate
B. price
C. scale
D. standard

[单项选择]Last year Luis invested x dollars for one year, half at 8 percent simple annual interest and the other half at 12 percent simple annual interest. Now he wants to reinvest the x dollars for one year in the same two types of investments, but the lower rate has decreased, If the higher rate is unchanged, what fraction of the x dollars must be reinvest at the 12 percent rate s that the total interest earned from the x dollars will be the same for both years ？（）
(1)The lower rate is now 6 percent.
(2)The total amount of interest earned from the two investments last year was $3,000.
A. 条件(1)充分，但条件(2)不充分．
B. 条件(2)充分，但条件(1)不充分．
C. 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
D. 条件(1)充分，条件(2)也充分．
E. 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

[单项选择]A. 25 dollars. B. 30 dollars. C. 70 dollars. D. 10 dollars.

[单项选择]A. 20 dollars. B. 15 dollars. C. 24 dollars. D. 21 dollars.

[单项选择]Who is Larry
A. Jane’s new neighbour.
B. The postman.
C. Jane’s boy friend.

[单项选择]A. 25 dollars. B. 30 dollars. C. 70 dollars. D. 10 dollars.

[单项选择]Company X can borrow U.S. dollars at a rate of 7% , and can borrow Japanese yen at 2%. Company Z faces a dollar borrowing rate of 9% and a yen rate of 2%. The commercial needs of Company X are to borrow yen, while Company Z desires to raise dollars. Is it possible for these two companies to enter a currency swap arrangement that will reduce their borrowing costs relative to their costs if no swap were used（　）
A. Yes, X should borrow dollars, Z should borrow yen, and the companies should enter a currency swap. 
B. No, Bout companies do not have relative advantages that can be exploited. 
C. Yes, X should borrow yen, Z should borrow dollars, and the companies should enter a currency swap.

[单项选择]A. 7 dollars.B. 10 dollars.
C. 63 dollars. D. 70 dollars.

[单项选择]Conversation 1A. 100 dollars. B. 150 dollars. C. 200 dollars. D. 250 dollars.

[单项选择]A) 90 dollars. C) 110 dollars.
B) 10 dollars. D) 100 dollars.

[单项选择]A) 100 dollars. C) 80 dollars.
B) 90 dollars. D) 110 dollars.

[单项选择]A. 4 dollars. C. 12 dollars.
B. 7.5 dollars. D. 8 dollars.

[单项选择]A) 17 dollars. C) 13 dollars.
B) 18 dollars. D) 19 dollars.