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- 1would she like some books?为什么在问句中可以用some
- 2——Can I use your MP3?A Yes,you will B Not at all C I'm sorry but I do D Sure,go ahead
- 3每上升1000米,水的沸点下降多少度?
- 4如何用万用表测电压电流?
- 5一元二次方程(m-1)x的平方+7mx+m的平方+3m-4=0有一个根是0,求m的值
- 6排列组合A C怎么算?
- 7She often thinks of herself,so we think she is selfish_________.A.sometime B.some time C.some t
- 8lPlease let me look at your new books.同义句Please ------- -------- your new books.
- 9实验室常用一种体积比为1∶4的稀H2SO4.此种稀H2SO4是用1体积质量分数为98%、密度1.84g/cm3的浓H2SO4和4体积水混合而成,密度为1.23 g/cm3.求此稀H2SO4的物质的量浓度.
- 10甲乙两车分别从相距90km的ab两地出发,同向而行,甲车在后,甲速65KM/H乙速50KM/H,多少小时后,甲反超乙75KM?