The word "message" in the last paragraph means__________.
A. printed news
B. contact
C. meaning
D. idea
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The doctor tried to get the answer________.
A. why certain people age sooner than others
B. how to make people live longer
C. what size certain people's brains is
D. which people are most intelligent
Fermi, an experimentalist as well as a theoretician, won a Nobel Prize for produ-cing the first-nuclear chain reaction in the world.
A. Right
B. Wrong
C. Not mentioned
The radiating level and the temperature of the surface must rise because of the
Only if the amount of water vapor in the atmosphere increases as the temperature