题目

山东省淄博市2011届高三第一次模拟考试 — There are no relative articles on the Internet.What shall we do? — My God！There are always not any useful articles when you want         . A.one                   B.it                C.that                           D.any    答案：A   14．若x＞0，＞0，且xy-（x+y）=1，则x+y的取值范围为[2+2$\sqrt{2}$，+∞）．