已知$i$是虚数单位，则$\frac{2}{1+i}$=（   ）

（   ）

麻屋子，红帐子，

里面睡个白胖子。

（打一食物）谜底：____

阅读短文，判断正误。

    I'm Fangfang. I live in a village. It's small but beautiful. Look! That is my house. There are some trees near it. Behind the house there's a big river. You can see boats on the river. Many ducks are beside the boats. How lovely! Oh, many flowers are among (在……之中）the trees. Let's get some for our teachers.

小明的爷爷、奶奶生活在农村。今年暑假，小明打算去看望爷爷、奶奶，并完成一份农村调查报告。为此，他做了充分的准备，搜集了大量关于“农业、农民、农村”的资料。下面几个问题，是他资料中的一部分，你能回答吗？试试看。