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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. J2 x" u( d! z) g* I& O8 A) x; Atvb now,tvbnow,bttvbis it b??

roymak82

thanks

iii222

I think is C.
1 C% a1 M6 p1 h, \4 x4 etvb now,tvbnow,bttvbTVBNOW 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。/ o# X' l2 s( ~
Since A & B will have no way to know, and D did not know the answer.5.39.217.773 C" c: y- L- r! Q
公仔箱論壇, l/ F6 O% T5 r6 e; K# L
This is a tough question for grade 1.  
+ H; y$ f7 B: z5 }5 m' {7 B) y公仔箱論壇tvb now,tvbnow,bttvb2 x7 R+ D/ P, T
I most likely cannot answer it within 5 minutes when I was that young.公仔箱論壇- a( b* ]5 O9 o% W# E2 X: g$ M
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Wow, 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" ^_^
2 t- I0 {6 i6 ?* C$ \+ m5.39.217.77
% S0 j" p# M) P6 w偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則