This article first marketing theory, such as market segmentation and target theory, competition in the market theory, portfolio theory, such as marketing review.

本文首先对市场营销的相关理论，如市场细分与目标化理论、市场竞争理论、市场营销组合理论等进行回顾。

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Grey target theory is grey relational theory of dealing with the lists of mode and its core concept is approaching degree. According to it, we can classify the modes.

灰靶理论是处理模式序列的灰关联分析理论，其核心概念是靶心度，可以依据靶心度进行模式分级。

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That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels.

这一点很重要，因为理论表明，当目标鱼种的生物量为其原始水平的50%左右时，渔场才能达到可收获的最大可持续产量。

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If all drug companies target amyloid and the theory is wrong, all the drugs will fail.

FORBES: Eli Lilly Setback Could Pave Way For New Alzheimer's Approach

There's a reason, it turns out, why the monetary policy target most loved, in theory, by academic economists for the best part of 40 years has never made it to the point of actually being used.

BBC: The Bank of England, the chancellor, and the target

Wible responded to the news with a piece repeating his theory about Gamestop as a target for a financial buyer.

FORBES: Malone Bids For Barnes & Noble; How About GameStop, Too?