Turn on the first for one min and then turn it off. + Q D3 h; \5 _9 J0 n% Z. sTurn on the 2nd for five min and then turn it off. 2 u6 [3 E6 a; q; Z1 @3 y5 eTurn on the 3rd and leave it on." o% n7 t8 ^" e/ `6 [! n
And then go upstairs right away. 0 ?% _4 X* B$ Z4 v / c$ \% x# R! V! b* PFind the answer by using your fingers and eyes 4 s0 s2 Y# ]% l0 m1 R& a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 9 d0 y/ a1 P8 S$ ATurn on the first for one min and then turn it off.: l. l! \( [ o$ P% N
Turn on the 2nd for five min and then turn it off. ! } O1 T0 r% s& y, R) Z" U# y6 dTurn on the 3rd and leave it on.2 n- Q1 {% H* \2 \* U9 z
And then go upstairs right away.+ ]: ^5 o1 J/ X) j
9 Q, Q6 G8 \( E$ R% n8 ~; @! RFind the answer by using ...