根据短文内容，判断正确还是错误。

    There is a big fruit shop near Kitty's home. Kitty is at the fruit shop now. There are many kinds of fruits. There are big apples, yellow pears, fresh bananas, juicy oranges, and so on. Kitty wants to buy some apples and bananas. They are expensive. The apples cost ten yuan. The bananas cost twenty yuan.

在匀变速直线运动中，下列说法正确的是（　　）