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
1 ]* f! }/ g* x, g公仔箱論壇* p, b* l" A5 @( L
is it b??

roymak82

thanks

iii222

I think is C.
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0 D; c  e5 r3 |公仔箱論壇Since A & B will have no way to know, and D did not know the answer.
: {; C9 J& R/ d4 k6 Htvb 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。4 u+ [( e* y4 F! _0 W
This is a tough question for grade 1.  公仔箱論壇9 p8 v. E% W' \% f6 s/ L* K1 h/ M
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I most likely cannot answer it within 5 minutes when I was that young.
5 `/ c0 d& n: n1 B5 o- lTVBNOW 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。( g0 c7 F+ f- |* G. y6 s
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" ^_^
1 u! X, q- l2 Ztvb now,tvbnow,bttvb
9 c) Z* l1 E5 P+ j' c/ [2 R* F' F- ctvb now,tvbnow,bttvb偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則