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- 1某厂准备加工一批零件,原计划每天加工30个.当加工完1/3时,由于改进了技术,工作效率提高了10％,结果提前了4天完成任务.问这批零件共有几个?)
- 2NaCl为什么是盐
- 3l的同音词 和……
- 4—Did Mary come to the party?—I don't know.She__while I was out.A.might have come B.might come
- 5mol/L与mol/mL 如何换算?
- 6英语翻译
- 7He didn't to school yesterday ,because of he was ill.那个地方错了?
- 8Only CNY will have long vacation because factory closed. Did you go somewhere in CNY?
- 9在一个长50m,宽8m,深1.4m的长方体蓄水池里贴瓷砖,瓷砖的边长是0.2m的正方形,贴完共需多少块?
- 10如图,射线OA上有B、C、D三点,共有几条射线