题目内容

What security features have been added to banknotes to prevent them being copied?

A. silver foil
B. intricate patterns
C. portrait of president
D. water mark
E. special paper

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Swapping means bartering

A. 对
B. 错

Chinese people used to use rice as money.

A. 对
B. 错

Western people used coins instead of gold because they were easier to carry around.

A. 对
B. 错

Nowadays, most of the money is invisible.

A. 对
B. 错

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