Turn on the first for one min and then turn it off. , ?. q$ z4 E6 [Turn on the 2nd for five min and then turn it off.- s0 w6 V) I4 B# x) i# f8 n
Turn on the 3rd and leave it on. ' p7 A) e3 M5 D n% p4 jAnd then go upstairs right away. - B! t# {3 q2 n" U& s9 \& y% t T8 [% g0 O' w0 z
Find the answer by using your fingers and eyes 1 h! Z3 R1 W1 z9 Y& V; ~7 P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 1 W9 u/ R0 v8 C5 ?Turn on the first for one min and then turn it off.' ^& K `, j8 `2 A( Z1 ?
Turn on the 2nd for five min and then turn it off.( Z' e1 Q' i" w/ r u" m9 q% j! x! v
Turn on the 3rd and leave it on. ; X/ Q2 [/ f& K* i, i: dAnd then go upstairs right away. 6 {8 I' T |( P+ R3 U4 F! m$ A! }; P) u* i
Find the answer by using ...