题目

下列分式，，，，中，最简分式的个数是( )A. 1个 B. 2个 C. 3个 D. 4个 答案：【答案】A【解析】根据最简分式的概念，可把各分式因式分解后，看分子分母有没有公因式，确定有几个即可.=，=，==b-2；==-1.所以最简分式共有1个.故选：A.— The government has tried its best to ________ the people in poor areas ________ food and clothes.— That’s good news!A.provide; for B.provide; with C.offer; to