题目：
阅读理解判断正误，正确的打“√”，错误的打“×”。
Today is Monday. Su Yang and Su Hai are on duty on Mondays. Su Yang usually gets
up at six o'clock, 10 minutes earlier than Su Hai. They go to school together. Su Hai
is taller than Su Yang, so she cleans the windows and Su Yang cleans the desks. Su Hai
cleans faster and cleaner than Su Yang, so she often helps Su Yang. They like cleaning
the classroom for their classmates.
( ) 1. The students doesn't have school today.
( ) 2. Su Hai gets up later than Su Yang.
( ) 3. Su Yang goes to school earlier than Su Hai.
( ) 4. Su Hai often helps Su Yang.
( ) 5. They like playing in the classroom.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：需求解析：解析：需求定义的一种变通的方法是获得一组基本的需求后，快速地加以实现。
