42题咋选?

42题咋选? 第二题咋选?.. 第四题咋选?close和closed,open和opened有啥区别? 42页 42CrMo 42题. 42题, 42题选啥啊, 41 42 42~44 如何巧算:(42×15+42-42×8)×125 用简便方法计算.175*42+26*42-42 42*52+42*47+42的递等式简便计算 42乘134减42减33乘42 42乘134减42减33乘42 现在分词在句子中可以作原因状语吗?下面这个题咋选?Dozens of movies are known _____ in this small town,which has been turnd into a tourist attraction.A.being made B.having been made C.to be made D.to have been made 简算73×77+58*58-42*42 201×42-42怎样简便计算?