更多"What is the purpose of the passage"的相关试题:
[单项选择]What is the purpose of this passage
A. Introduce some new ideas about the relationship between trees and carbon dioxide.
B. Introduce recent condition of global industrial pollution.
C. Call on people to plant more trees to reduce greenhouse gases.
D. Point out that power companies should be responsible for the rising levels of carbon dioxide.
[单项选择]What is the main purpose of this passage
A. To describe an experiment in which a Hydrapulper is used.
B. To introduce Hydrapulper, a new type of garbage disposer.
C. To tell what the writer thinks of the recycling of garbage.
D. To explain why garbage should be recycled in a new way.
[单项选择]What is the main purpose of the passage
A. To outline contrasting types of economic systems.
B. To explain the science of economics.
C. To argue for the superiority of one economic system.
D. To compare barter and money-exchange markets.