This is the content of primary school, but it is also the foundation of the foundation, and the most typical example problem is the problem of chickens and rabbits in the same cage.

Although Pei Zimo's grades are not good, he is actually very smart and can understand everything.

Xia Qing glanced at the time, it was almost time for dinner, but with such a bunch of...

"The Goddess of Xueba" Chapter 209 The Shura Field with the Dark Tide is surging in the hand, please wait a while,

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