For price discrimination to work ________. A: the market must be segmentable and the segments must show similar intensities of demand B: members in the lower-price segment must be able to resell the product to the higher-price segment C: competitors must be able to undersell the firm in the higher-price segment D: the practice must not breed customer resentment and ill will E: the extra revenue derived from price discrimination must not exceed the cost of segmenting and policing the market

（ ）差异的存在是市场细分的客观依据。( ) the existence of difference is the objective basis of market segmentation. A: 产品products B: 价格price C: 需求偏好Demand preference D: 细分segmentation

中国大学MOOC: English and Chinese have great differences in the expression of numbers, which is mainly reflected in their different ways of segmentation. In English every ______ single digit is put in a segment, and each segment is denoted by words like "thousand", "million", "billion" and "trillion" from low to high. In Chinese, every four single digit is put in a segment.

There are 4 types of market segmentation which are most commonly used. They are _______. A: demographic segmentation B: behavioral segmentation C: psychographic segmentation D: geographic segmentation

Discuss the advantages of market segmentation.