In high-low pricing, retailers charge low prices on an everyday basis with occasional price increases.
举一反三
- Limit pricing requires the monopolist to maintain a low price before entry occurs ( ). A: high, after B: high, before C: low, before D: low, after
- Cinemas charge students low prices and non-students high prices. This behavior belongs to（ ）. A: first-degree price discrimination B: second-degree price discrimination C: three-degree price discrimination D: bundling sales
- The aphotic zone (bottom of the ocean) will have ____ and ____ while the photic zone (surface of the ocean) will have ____ and ____. A: low temperature, low salinity; high temperature, high salinity B: low temperature, high salinity; high temperature, low salinity C: high temperature, high salinity; low temperature, low salinity D: high temperature, low salinity; low temperature, high salinity E: both have equal temperature and salinity
- Which are corrrect for choosing proppant A: for low permeability formations,the fracture mainly is requires to increases the length B: for low permeability formations,the fracture mainly is requires to increases fracture conductivity C: for medium or high permeability formations,the fracture mainly is requires to increases the length. D: for medium or high permeability formations,the fracture mainly is requires to increases fracture conductivity.
- ENUM类型的字段level定义为（LOW、MIDDLE、HIGH），ORDER BY level asc的顺序是 A: HIGH、LOW、MIDDLE B: LOW、MIDDLE、HIGH C: MIDDLE、LOW、HIGH D: HIGH、MIDDLE、LOW