What is the conversation mainly about?, a way to predict floods, an early irrigation method, the number of early farmers, the most common early crops, How did farmers control water?, They put gates in ditches, They filled ditches with dirt., They carried water in buckets., They planted far from the river.

视觉风格

显示所有

活动设置

排行榜

切换模板

恢复自动保存:?