[多选题] The basic categories of business models include（）

1、[多选题]undefined1. detailed client information such as（）can help business to set their marketing strategies effectively.

• A、product quality
• B、purchasing power
• C、personal preferences
• D、mode of consumption

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2、[多选题]The basic categories of business models include（）

• A、brokerage
• B、advertising
• C、community
• D、subscription

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3、[判断题]A firewall insulates a private network from a public network using established controls on the types of request they will route through to the private network for processing and fulfillment.（ ）

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4、[判断题]GPRS can not charge the user per data bit of information sent and receive（ ）

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5、[判断题]In global Internet marketing, marketers can take other countries and their populations for granted without restraint（ ）

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