07年1月的数学S9的最后一题: 1 B) J) c8 n2 Q9 q; p- f8 C6 O ^+ uOn a square gameboard that is divided into n rows of n squares each, k of these squares lie along the boundary of the gameboard. Which of the following is a possible value of k?# W, G" j z- @
A 10 B25 C34 D42 E521 G" r) ^" z! }' _/ r) H e6 D! C) {* V
6 }7 F$ I" y+ V. e2 ?& i% U) o: l& f3 w/ Y1 Z1 Z B- b
我的数学实在很烂。。。谢谢大家了。。。鞠躬。。。