单项选择题
Pipelines are not （）
A. labor-intensive B. capital-intensive C. tech-intensive D. low cost and high return
单项选择题 The large market share in china’s transportation is （）transport.
单项选择题 There is no difference between the environmental logistics and （）one .
单项选择题 For small and medium-sized companies, those logistics management is still（）
