下列有关禹的说法，正确的是
①治理洪水②把全国划为“九州”③铸造“九鼎”④建立夏朝[ ]
A．①②③
B．①②④
C．②③④
D．①②③④
答案：D
— Do you think students' using mobile phones has any advantages?
— ______.[ ]
A. Yes, just in case
B. Well, it just depends
C. Nothing at all
D. Yes, perfectly
“质人”、“贾师”、“廛人”
