D. are often asked to polish their shoes
正确答案是
17. According to the passage, conversion rates ___.
A. are always changing
B. are determined by financial institutions
C. are agreed upon by two trading countries
D. vary from day to day
正确答案是
18. The intended audience of this passage are ___.
A. professors of economics
B. postgraduate students of international trade
C. beginners of business
D. business people
正确答案是
19. Which of the following is likely to be discussed in the next paragraph?
A. Export trade barriers.
B. Quotas and tariffs.
C. Reasons for imposing trading barriers.
D. Measures to break down trade barriers.
正确答案是
答案:
1.B 2. C 3. B 4. B 5. C 6. C
7. D 8. B 9. B 10. A 11. B 12. D
13. A 14. D 15. D 16. C 17. D 18. C
19. B