In some situations, such as Internet sales, a formal review is impractical for each order.

在某些情况中，如网上销售对每一个订单进行正式的评审，可能是不实际的。

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But over the past year sales of smartphones - which have some of the same functions as computers, such as Internet access and music players - have risen sharply.

不过在过去几年里，有着一些与电脑相同功能(如互联网连接和音乐播放功能)的智能手机销量也出现大幅飙升。

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By not collecting sales tax, Internet retailers such as Amazon had a real price advantage over California's small businesses, such as booksellers, which have a physical presence in the state.

如果免征消费税，在加利福尼亚州，像亚马逊这类的网络零售商与拥有实体店的其它小型企业例如书店相比，确实存在价格优势。

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But though Jeffords' decision changes the political landscape in Washington, existing bipartisan agreement on many technology policy issues means that there are likely to be few immediate, substantive shifts on questions such as an Internet sales tax, online privacy, intellectual property or telecommunications regulation.

CNN: Jeffords switch seen as no shock to tech policy

Much of that fraud comes from transactions where the card is not physically present, such as telephone or internet sales.

BBC: Overseas credit card scam exposed

"One need only see what transpired with the iPod and its impact on CD purchases as well as other historical transformations such as digitizing records, Internet sales, online media, et cetera, for pre-existing protocol, " says Matt Lloyd, chief investment strategist of Advisors Asset Management.

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