单项选择题

A．To run into each other.
B．To get bargains.
C．To join the crowds.
D．To avoid the crowds.
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单项选择题
According to the passage, computed tomography can be used for all of the following EXCEPT _________.
A．monitoring a patient’’s disease
B．diagnosing disorders
C．locating tumors
D．reconstructing damaged tissues
单项选择题
We learn from the passage that ______.
A．foreign language requirements for the Ph. D. do not vary in difficulty among universities
B．meeting foreign language requirements for the Ph. D. is the most frequent reason for dropping out
C．it is an essential part of many Ph. D. programs to meet foreign language requirements for the Ph.D.
D．meeting foreign language requirements for the Ph. D. is more difficult for the science candidate than for the humanities candidate
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