据统计,全球每分钟约有8500000吨污水排入江河湖海,则每分钟的排污量用科学记数法表示应是( )吨。
8.5×106
某导体两端电压为12V,通过的电流为0.8A,该导体的电阻为______Ω;若导体两端的电压是18V,则通过的电流为______A,这时导体的电阻为______Ω.
在下列空格内填入适当的月份名词。
1. _____ 1st is Children's Day.
2. _____ 1st is April Fool's Day(愚人节).
3. _____ 1st is the Army Day (建军节) in China.
4. _____ 1st is May Day.
5. _____ is the last but one month of a year.
6. _____ 25th is Christmas Day (圣诞节).
7. _____ 1st is the Party's (党的) birthday of China.
8. _____ 1st is New Year's Day.
9. _____ 10th is Teachers' Day.
10. _____ 1st is National Day (国庆节).
11. _____ 8th is Women's Day.
12. In _____, people talk the least (最少的), because it has only 28 0r 29 days.