问题
选择题
The 2014 Summer Youth Olympic Games will be held August 2014 in Nanjing . [ ]
A. in
B. at
C. on
D. between
答案
答案：A
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The 2014 Summer Youth Olympic Games will be held August 2014 in Nanjing . [ ]
A. in
B. at
C. on
D. between
答案：A
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的电流
和灯L
的电流之和