乙数除甲数的商是2,则甲、乙两数的比是______.
假设乙数为1,甲数就为2,所以甲、乙两数的比是2:1.
故答案为:2:1.
Please ________ the TV. I'd like to see the TV play. [ ]
A. turn up
B. turn on
C. turn down
D. turn off
什么灭火剂是扑救精密仪器火灾的最佳选择?