__________ 查看材料
A. Don"t eat food in your car.
B. Don"t shout into your mobile phone on a bus or subway.
C. We all know that some behaviors are simply unacceptable.
D. Many people do this on subways， but it"s really annoying.
E. Getting off and on in an orderly manner can save time for all.
F. Suddenly， you feel someone leaning over your shoulder reading along with you.
A brain road map will__________. 查看材料
A. be the most complicated map we know
B. tell us which neuron is better
C. help us study well
D. be produced by the advanced forms of operation
Which does not belong to the scientific breakthroughs in the 21st century？
A. We"ll know whom we are.
B. We"ll live longer.
C. We"ll conquer cancer.
D. We"ll manage Earth.
According to the passage， the normal aging process is__________.
A. a process in which people become older and older
B. a contest that can be seen
C. a long process of struggling
D. a fight between damaging DNA and preparing the damage
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