以下哪部分属于下游工程的内容?( )
A: product extraction, purification
B: assay
C: waste treatment
D: by product recovery
A: product extraction, purification
B: assay
C: waste treatment
D: by product recovery
举一反三
- Which of the following cannot be generated from the Use of a product A: Solid waste B: Raw resource C: Waste liquid D: Waste gases
- The _____ estimate of an increase in gross national product suggested a fast recovery from economic recession.
- “To plug a product” means to _____________. A: to produce a product B: to promote a product C: to pull a product D: to develop a product
- This product _________waste water by removing heavy metals from it. A: qualifies B: clarifies C: identifies D: purifies
- What will determine that people will continue to use the product A: The product’s own worth. B: The product’s design. C: The product’s advertising. D: The product’s price.