单项选择题

The aim of the article is to _____.

A．show how to use smart cards.
B．show the difference between ATM card and chip card.
C．how the smart cards have become popular.
D．persuade Americans to use smart cards.

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单项选择题

In the sentence A health -care claims processor in Indianapolis, Ind. , hopes smart cards will stream- line medical - bill payments ( paragraph 4 ), the word streamline has the meaning of _____.

A．make.., into a stream
B．make.., flow smoothly like a line
C．make.., successfully
D．make

单项选择题

In the sentence “Consumers bother less with pocket change and are able to use plastic even at tradition- ally cash - only vendors.” ( paragraph 3 ), the word “plastic” has the meaning of _____.

A．credit card
B．plastic bill
C．money
D．check