Turn on the first for one min and then turn it off.) H5 h1 U) m$ _" q1 y4 d
Turn on the 2nd for five min and then turn it off.8 n9 Y- l2 Q- o! r3 |
Turn on the 3rd and leave it on.6 S9 k1 G8 \% }3 ]4 ?# k
And then go upstairs right away.% D, V2 n/ {; P* J2 T% y
- K- W$ c! D4 W0 Z5 X" D- kFind the answer by using your fingers and eyes/ l8 X" S# a C6 ]) i. c ?
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 ' X1 S) o) t- d; S. j" s7 j" ATurn on the first for one min and then turn it off. / I* D" j/ `% i# i, P5 k, jTurn on the 2nd for five min and then turn it off.9 o6 V0 x* x6 l
Turn on the 3rd and leave it on.) u' J B" E# p
And then go upstairs right away.& ~% n* u% F* e4 o