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- 1一个高为40CM,底圆直径为2CM的圆柱型容器,往里面放入直径为1CM的球,问能放多少个?怎么算的?
- 2如果图中正方形的面积是28平方厘米,阴影部分的面积是 平方厘米.就是一个正方形,空白部分是四分之一个圆
- 3NH4HCO3+NaCl=NH4Cl+NaHCO3↓ 中NH4CL中氮元素质量分数为
- 4在△ABC中,已知向量|AB|=4,向量|AC|=1,S△ABC=根号3,则向量AB×向量AC等于
- 5which of the caps will you take I'll take ( ),one for my father,the other for my brother.
- 6on is the his table bag怎么连词成句
- 7已知x
- 8everyone,your,in,speak,family,English,does?(连词组句)
- 9Only by work ing hard can you a_ a good knowledge of English
- 10Where you Just now? Iat school.