Ferrous sulfate is very cheap and can be applied directly to coagulation process. ( )
举一反三
- which materials can be used to increase soil pH A: Ferrous sulfate B: Quick lime C: Plant ash D: Organic fertilizer
- G value and GT value are employed to design coagulation tanks， because they can describe the coagulation process comprehensively。 （ ）
- In some supermarkets, goods can be made very cheap if they are bought ___in bulk____.
- 对你的生活负责可能是一个非常有挑战性的过程。 A: Take responsibility for your life can be a very challenging processes. B: Taking responsibility for your life can be a very challenge process. C: Taking responsibility for your life can be a very challenging process. D: Taking responsibility for your life can be an very challenging processes.
- Label each of the following as either a physical process or a chemical process:(a)rusting of a metal can is a process;(b)boiling a cup of wateris a process;(c)pulverizing an aspirinis a process;(d)digesting a candy baris a process;(e)exploding of nitroglycerinis a process.