It can be inferred from the, passage that
A. invasions played an important role in medical exchange.
B. medical exchange: was？ fulfilled by means of translation.
C. eastern medicines are more popular than western medicines.
D. eastern medicines developed earlier than western medicines.
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It is implied in the last paragraph that many professional photographers
A. think photography has lost its distinctive status as an art.
B. think photography should not be put against traditional art.
C. have forgotten that photography is an art.
D. have neglected the miseries of the modem society.
Which of the following statements is CORRECT about Mary？
A. She is enjoying her language study.
B. She is enjoying her management study.
C. She is not feeling very well at the moment.
D. She is not happy about her study pressure.
The author may most probably agree that games can be used efficiently
A. as instructional tools.
B. to decrease crime rates.
C. for entertaining purposes.
D. by forward-thinking firms only.
正确答案是（）
A. gathered
B. speeded
C. worked
D. picked
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