单项选择题
Speaker A: ______
Speaker B: I’m a student.
Speaker A: What are you studying
Speaker B: Medicine.
A. Are you a student
B. What are you doing
C. How do you do
D. What do you do
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单项选择题
The unfriendly feeling towards computers is developed from______.
A.the possible widespread unemployment caused by their introduction
B.their use as part of automated production systems
C.the least possible number of operators
D.the production system in steelworks
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单项选择题
What is the passage mainly about
A. Faint dwarf stars.
B. The evolution cycle of the Sun.
C. The Sun’s fuel problem.
D. The dangers of invisible radiation.
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