howardc888

Answer is C.  Many people already explained it.  :)

susu_nel

D应该先答对。D可以看见B,C是什么颜色，他就会有1/2机会答对

我是步惊云

interesting questions

kammandang

1# wasimasterQ
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is it b??

roymak82

thanks

iii222

I think is C.
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9 x- a6 G7 i' wtvb now,tvbnow,bttvbSince A & B will have no way to know, and D did not know the answer.TVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。. R4 O  Z% E, u9 d) n- P7 f

* ^4 q6 _. k; B5 ~2 j! \5 o; U& u% ]This is a tough question for grade 1.  & K1 |) S6 d1 V9 S* M3 B
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I most likely cannot answer it within 5 minutes when I was that young.
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: L7 T9 l! T( e! ]) h. ?6 P* Q( W( CWow, really enjoy this question.  Thank you for sharing.

mirrorabc

Thanks for sharing

GN2160659

thanks for sharing

greenland

answer pls...

wa929

thanks for good question

edwin_8888

thank for sharing

24456430

看不到图片，做不了题目

shijin

總覺得這類型的題目 都是在考驗"邏輯思考" ^_^5.39.217.77:8898. p5 j: s! |7 S! l8 i4 M
公仔箱論壇9 V2 E& S- c# L* E' i0 R2 Q
偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則