The "Three North" Shelterbelt in China is an unprecedented ecological construction project, which is known as the "Green Wan Li Great Wall Construction Project". Which of the following is not planting

The "Three North" Shelterbelt in China is an unprecedented ecological construction project, which is known as the "Green Wan Li Great Wall Construction Project". Which of the following is not planting trees? The East-West Span of the Three-North Shelterbelt Project is nearly 9,000 Li, which undertakes important tasks such as rejecting eight deserts and four sandy lands in the north, protecting the Loess Plateau and North China Plain in the inland, and protecting important places such as Beijing and Tianjin in the south. However, over the past 30 years, the total investment of the project has only been more than 654.38+000 billion yuan, which is less than the total investment of Beijing-Shanghai high-speed railway. Nevertheless, the Three-North Shelterbelt Project is still preventing desertification. Providing enough wood for human beings is not the purpose of the Three-North Shelterbelt.

So choose: B.