《天上的街市》一诗表现主题的方法是（    ）

根据句意和汉语提示，写出单词的正确形式。
____ On Children's Day, children could not hide their______________(excite).
____ He comes from the _______________(south) city of China.
____ Jim is happy to live on the ____________ (twelve) floor because he enjoys the view out of the windows.
____ Mr. and Mrs. Wang will celebrate their fifteen years of ____________ (marry) this weekend．
____ The water in the river is______________(harm). You can drink it without cooking.

已知方程x²+px+q=0的两个不相等实根为α，β．集合A={α，β}，B={2，4，5，6}，C={1，2，3，4}，A∩C=A，A∩B=∅，求p，q的值？