题目

Could the students from less developed areas in central and western China get the same educational chances as those in big cities in the east Could the children in poor rural (农村) areas develop as well as those in rich cities Maybe the answers were “No” in the past. But now, China is trying to change the situation.In order to help rural students grow taller and stronger. China’s Nutrition(营养)Improvement Program started in 2011. According to the program, a lot more money was spent improving students’ meals. More than 36 million students from 134,000 primary and junior high schoo已知分式有意义，则x的取值为（ ）A. x≠－1 B. x≠3 C. x≠－1且x≠3 D. x≠－1或x≠3 C 【解析】试题解析：分式的分母不能为0，所以， ，解得x≠－1且x≠3. 故选C.