、解释下列句中的加点词。（4分）
1）璧有瑕，请指示王。
2）相如虽驽，独畏廉 * * 哉？
3）衡少善属文
4）视事三年，上书乞骸骨，征拜尚书。
试至少写两个只含有字母x、y的多项式，且满足下列条件：
（1）六次三项式；
（2）每一项的系数均为1或﹣1；
（3）不含常数项；
（4）每一项必须同时含字母x、y，但不能含有其他字母．
According to the passage, which of the following is NOT the result of globalization and liberalization a. The gap between the developed and the developing countries has widened. b. The industrialized world has witnessed unprecedented wealth. c. The wealth of the world has been redistributed. d. The current developing countries will become the most rapidly rowing economies.
