单项选择题

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions. Now listen to the conversation. What does the woman imply about archaea

A．They need very little energy.
B．They’re found at all depths of the ocean.
C．They live where there is no sunlight.
D．They’re similar to many other kinds of microorganisms.
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单项选择题
In the study of students exposed to classic music, what effect did the music have
A．It increased the students’ while blood cell count.
B．It increased some students’ energy level.
C．It improved the students’ ability to play musical instruments.
D．It released a natural painkiller in some students’ bodies.
单项选择题
What does the professor say about the artists in the United States during the Great Depression
A．Many artists lost faith in the value of art.
B．Many artists moved away from large cities.
C．Many artists were forced to take jobs in other fields.
D．Many artists in the United States moved to other countries.
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