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- 1一项工程,甲队单独做30天完成,若乙队先做7天,甲乙合做8天,其余的甲队再做12天完,乙队独做需多少天完成?
- 2He didn't come to the prrty because he was ill yesterday原因状语里有时间状语怎么办吖好像放在句首也
- 3look at the trash ,could you ________?A take it out?B take them out
- 4She has to do her homework in school 变为疑问句
- 5如图,已知∠1=∠2,∠D=60˚,求∠B的度数.
- 6如图,某小区进行绿化改造.计划围出一块三角形绿地ABC.其中一边利用现成的围墙BC.长度为1(百米).另外两边AB,AC使用某种新型材料.∠BAC=120°设AB=x(百米),AC=y(百米) (1)求x
- 7街心花园要建一个圆柱形喷水池,底面直径是10米,深1米,要在喷水池底面和内壁抹上水泥,抹水泥部分的面积是
- 8I can't find my books .where are t____
- 9把下面双重否定句改为肯定句,肯定句改成双重否定句
- 10不只是...不只是...不只是造句