2008年高考江苏数学卷一览无遗显示着:14道填空题中除第9、14题外,六道解答题中除最后两题外,都是在课本基础上组合、加工、发展而成.这些都透露出高考数学命题的潜规则:从课本中寻求支撑,复习时须回归课本重视课本.下面看许多考生无所适从的第14题:在平面直角坐标系xOy中,设三 The 2008 Jiangsu mathematics volume list at a glance shows that except for the 9th and 14th questions in the 14 blank-filling questions, except for the last two questions, the six answer questions are combined, processed and developed on the basis of textbooks. Reveal the unspoken rules of the college entrance examination mathematics proposition: seek support from the textbook, review must return to the textbook to attach importance to the textbook. The following look at the 14th problem of many candidates at a loss: In the plane rectangular coordinate system xOy, set three