The best title for the passage is______.
A.New Technology, Fresh Lifestyle
B.A New Boiling Process with Solar Power
C.Nanoparticles and Steam Creation
D.Importance and Implications of Steam
第1题
We can infer from the passage that______.
A.when put into water, nanaoparticles are highly active and hot enough to vaporize it
B.the steam bubble with some nanoparticles in it would float to the surface with steam released
C.once the nanoparticles are used up, new ones should be put into the water again
D.efficient use of steam may reduce the energy cost in some industrial processes
请帮忙给出正确答案和分析,谢谢!
第2题
As to micromanaging the boiling process, the author has described all the following EXCEPT______.
A.the conditions
B.the method
C.the principle
D.the materials
请帮忙给出正确答案和分析,谢谢!
第3题
Which of the following is TRUE about the new mechanism of producing steam?
A.It is similar to bringing down the boiling point of water.
B.Steam generators running solely on water and sunlight are under research now.
C.It employs the use of nanoparticles to focus sunlight more efficiently.
D.The research is widely known in the academic circle but little known among the public.
请帮忙给出正确答案和分析,谢谢!
第4题
The word "aggregate" in Paragraph One probably means______.
A.separate
B.descending
C.entire
D.floating
请帮忙给出正确答案和分析,谢谢!
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