Turn on the first for one min and then turn it off. . A/ [9 H: D4 S. ~0 r8 ZTurn on the 2nd for five min and then turn it off.( L# h' I" m, b) X) ~( U! [1 K
Turn on the 3rd and leave it on.+ ~/ c+ m+ B8 E2 v
And then go upstairs right away./ N0 M2 n: |' `- ?0 ?- Y
7 D' |! V3 h. W$ \" WFind the answer by using your fingers and eyes( W# O: B/ s4 y' N, [" O) u* F
这只是一个智力问题,不象是电工问题。
原帖由 老警察 于 2009-1-16 07:12 发表 8 A# M: _7 ]- {* CTurn on the first for one min and then turn it off. " ]& X' F$ H) h6 T+ M! jTurn on the 2nd for five min and then turn it off. 3 J: v- h8 Z$ K/ V$ z* n# k" }9 P M2 C2 MTurn on the 3rd and leave it on. . P! }! I/ o, V9 K& y% }. PAnd then go upstairs right away. 4 s' t2 A/ C% H' E: t U9 V# G! ~ 4 |) ], U: p" \8 v# Z; ?Find the answer by using ...