The passage provides information to answer .
A. how the government will function
B. where people would live
C. what kinds of equipment will be manufactured in future
D. how much the Life Net will cost
查看答案
Which of the following statements about the PAN is true？
A. It is the same as the Internet today.
B. It is the foundation of the PAN processor.
C. It is invented only for scientific research.
D. It develops from the PAN processor.
The word "conception" underlined in Paragraph 5 means______.
A. idea
B. imagination
C. notion
D. principle
The word "cramped" underlined in Paragraph 3 means______.
A. cheap
B. crowded
C. depressing
D. simple
According to the passage, scientists can't observe some of the earliest steps in brain activity because______.
A. those changes are subtle and masked by some reactions
B. subtle changes in blood flow began earlier
C. the imaging techniques are out of place
D. the flow of blood to increase to an area of the brain is slow
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