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单选题
The greatest value of the program is that each visiting student _____.
A
has a chance to travel in foreign countries
B
shares what he learned with others
C
learns a new language
D
gains a new understanding of world problems
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参考解析
解析：
句意：交换项目的最大价值在于每个交换生对世界问题有了新的认识。第十二段第三句提到“They are supposed to observe evaluate, and come to fair conclusions.”。意思是学生应该通过交换项目学会自己观察、评价国外遇到的现象并得出自己对其的看法和结论，故选D。
句意：交换项目的最大价值在于每个交换生对世界问题有了新的认识。第十二段第三句提到“They are supposed to observe evaluate, and come to fair conclusions.”。意思是学生应该通过交换项目学会自己观察、评价国外遇到的现象并得出自己对其的看法和结论，故选D。
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