题目内容
（请给出正确答案）
Why does the author mention genetic engineering and computer science？
A．To compare them with the new materials.
B．To show the significance of the new materials on the future world.
C．To compare the new materials with them.
D．To explain his point.
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更多“Why does the author mention ge…”相关的问题
Why does the author mention Horace Mann's early life？
A．As an example to show the importance of education.
B．To make the biography more complete.
C．Because it served as the inspiration for his later work in education.
D．In appreciation of the teachers who helped him succeed.
Why does the author mention Oates's book Them？
A．It is a typical novel of the 1960's.
B．It is her best piece of nonfiction.
C．It is a fictional work based on the experiences of another person.
D．It is an autobiography.
Why does the author mention gunpowder in Paragraph 3 ？
A．To remind readers that the colonial era ended in warfare.
B．To give an example of a product made from wood consumption.
C．To illustrate some negative aspects of some industrial processes.
D．To suggest that wood was not the only important product of the colonies.
Why does the author call the wealth of the riches "paper fortunes"？
A．Because their wealth is mainly generated from technology shares.
B．Because their wealth can be easily lost.
C．Because their wealth is greatly influenced by start-up companies.
D．Because their wealth is quickly devaluated with the up-to-down of house prices.
