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I think is C.公仔箱論壇( D/ E2 W2 q7 c" s" M3 ?; |
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Since A & B will have no way to know, and D did not know the answer.
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& C' D5 q1 R# v+ S2 K) _+ N& F4 vThis is a tough question for grade 1.  tvb now,tvbnow,bttvb& w: a& a" v; f! ?( H
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I most likely cannot answer it within 5 minutes when I was that young.5.39.217.76+ V( Q2 m2 M& l+ R, [  t$ T& h" d

4 w' u  v7 |4 `0 ~Wow, really enjoy this question.  Thank you for sharing.