When to use Personal Selling 3 In general, if a product has a high unit value and requires a demonstration of its benefits, it is well suited for personal sales.

使用推销的时机 一般说来，单位价值高、功能需要演示的产品 非常适合于推销。

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It also works well with existing products that are highly competitive and standardized, especially when they are of low unit-value and have high turnover.

如果产品本身极具竞争力，而且比较规范，那么，促销也适用于现有产品。尤其是如果这种产品单价较低而且流通量大。

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There are high correlation between service value of per unit and type of ecosystem.

单位面积服务价值的大小与生态系统的类型有着高度的相关性。

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In May 2008, Sgt Petry's unit of elite Army rangers approached a house in Paktia province in eastern Afghanistan which intelligence suggested held high-value al-Qaeda officials, the US military said.

BBC: Afghanistan veteran Leroy Petry given US Medal of Honor