问题
选择题
I was born at eleven _____ the night of October 10, 1987. [ ]
A. at
B. on
C. in
D. during
答案
答案：B
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I was born at eleven _____ the night of October 10, 1987. [ ]
A. at
B. on
C. in
D. during
答案：B
N2+：CH2，
。