题目

第二节 ： 任务型阅读（共5小题，每题2分，满分10分）  根据短文内容，从短文后的选项中选出能填入空白处的最佳选项， 将其标号填入第二卷上方的相应位置。选项中有一项为多余选项。 People are overweight for many reasons, the most important one of which is that they eat the wrong foods, get the wrong types of calories per meal,  51  . Food is more powerful than any weight loss pill, because the food that you eat can either make you thin or fat. This is true because your body is like an engine, and it only needs certain food若x，y∈R，且满足=1+i，则x=________，y=________。