A

    Tom is an eight-year-old student in Grade three. He is not interested in his lessons. He spends most of his time playing basketball. At night, he doesn't sleep until very late in order to play. In the morning, he usually gets up late and hurries to school. Sometimes he sleeps in class.

    Tom's father is worried about his poor schoolwork. He tried to make him work harder. One day, his father said to him, "My boy, if you get one hundred marks in the exam,  I'll buy a new basketball for you." The boy was very happy to hear that.

    The next day  Tom came running home. "Oh, Dad, I got one hundred." He shouted, "I got forty in English this morning and sixty in Chinese this afternoon!"

根据短文内容判断正误。

一份对某校四年级学生的调查材料说，96%的学生由家长叠被、整理卧室，要爸妈帮助洗澡的占95%，90%的学生不洗自己的手帕和被子，不会独自购物的有85%。这一调查警示我们要（     ）