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

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is it b??

roymak82

thanks

iii222

I think is C.
9 S- K4 ]& [7 ?7 m8 `" b" Y5 O: Dtvb now,tvbnow,bttvb
0 H( e2 O$ G5 ^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。Since A & B will have no way to know, and D did not know the answer.
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This is a tough question for grade 1.  www2.tvboxnow.com/ _5 }6 ]9 y' k' e0 ]9 p9 b$ U' L5 h
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I most likely cannot answer it within 5 minutes when I was that young.
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. N: @# [+ z2 J# p1 v+ q! b公仔箱論壇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" ^_^公仔箱論壇' H  ^( Q/ L6 F9 r1 g! ?

" `( o: _2 p  ?, Y) E$ G公仔箱論壇偵探型的數學題目 ^^

man0223

thanks for sharing

oftenpie

看不太懂規則