According to this passage, ______may result in the imbalance of bacteria in your intestines.A) antibiotic treatment for an ear infectionB) taking pills which contain freeze-dried germsC) eating yogurt or buttermilkD) eating products made from fermented mi

正确答案：A
答案：A
[试题分析] 细节题。
[详细解答] 根据第二段最后一句话Bat if the bad outnumber the good—for example，after antibiotic treatment for a sinus or an ear infection，which kills normal intestinal germs as well—the result can be diarrhea，我们可判断，A为正确答案。