问题
选择题
For many years we have been keeping in ____by sending each other e-mails or phone calls. [ ]
A. connection
B. contrast
C. relation
D. touch
答案
答案：D
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For many years we have been keeping in ____by sending each other e-mails or phone calls. [ ]
A. connection
B. contrast
C. relation
D. touch
答案：D