问题描述：
英语翻译
-why does the letter a mean 12 o' clock?
-Because it is in the middle of[ ]
A,a bag B,a day C,a map D,a cap
ABCD为选项
-why does the letter a mean 12 o' clock?
-Because it is in the middle of[ ]
A,a bag B,a day C,a map D,a cap
ABCD为选项
问题解答：
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