从一笔交易的出口商品换汇成本中可看出，在这笔交易中用多少人民币换回1美元，从而得出这笔交易为盈利还是亏损。()
A. 正确
B. 错误
The country's strongest earthquake took place in London in 1580.
A. Right
B. Wrong
C. Not mentioned
二战后，国际分工的领域从以有形货物的生产与贸易领域为主向服务业发展。()
A. 正确
B. 错误
Time clock punch was not used in IBM because ______.
A. nobody liked it
B. staff were trusted and valued
C. there were no hourly workers
D. everyone was punctual
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