普朗特数pr公式

一（）土地、一（）房屋、一（）田野填写量词. 求推荐高中数学解题方法的书,专门解题的 书里面要有集合、不等式、函数、指数函数和对数函数、任意角的三角函数这几章,有解析. 圆柱体的侧面沿高剪开,所得的图形可以是长方形,正方形,也可以是平行四边形吗注意是沿高剪开 Don't be late for school again____I'll have to have a talk with your parentsA.and B.so C.but D.or 表示看的词语：向高处看（） 大概的看（） 尊敬的看（） 向低处看（） 聚精会神的看（） 轻蔑的看（） rarely——to do what her parents have askedA did Joan fail B has Joan failed C Joan failed D had Joan fail选B为什么用现在完成时,不用过去式或过去完成式 下列表示“看”的词语.向高处看?向远处看?尊敬地看?从低处看?大概地看?聚精会神地看?下面按要求写句...下列表示“看”的词语.向高处看?向远处看?尊敬地看?从低处看?大概地看?聚精会神地 His parents did not have enough money what led to stop his study in his childhood.这句话对吗,what能引导一个句子吗,这是主语从句吗,还是应该用which,或者加逗号再用which,还是用逗号+leading 向高处看 向低处看 向远处看 大概的看 尊敬的看 聚精会神的看表示看的词 重铬酸钾的水溶液的问题?重铬酸钾的水溶液里面是 K2Cr2O7还是遇到水发生反映生成Cr2O3? be late for sth做某事迟到啦,为什么不说be late do sth 比如 I am late to have lunch. You have to r( ) fast if you don't want to be late.根据句子意思及首字母写出单词的正确形式. 方程解:某商场去年上半年的销售额是9000万元,是下半年的5分之3.这个商场去年全年的销售额是多少万元? LED手电中的亮度单位～流明,是怎么定义的 700流明手电筒亮度怎么样 when did you ———— english?take off take out take up take away 读《24孝之埋儿奉母》有感!急 24孝图读后感 手电筒的流明与什么有关?和LED以及电路有什么关系. She is already two hours late.What____to her?A can have happened B must have happened C should have happened D must happen she is already twe hours late.What____to her?A can have happened B must have happened C should have happened D must happen为什么不选B呢? 单项选择：She is already two hours late.What ＿to her?A.can have happened B.must have happened C.should have happened D.must happen 2.Mary ＿the job he offered to her,but she didn't.A.can't B.ought to have taken C.should take D.must have taken she is two hours late.what ( )to her?A should have happened B must have happened C may have happened D can have happened She's late.What ___ have happened to her?A should B must C can D would 填量词：几（ ）家具 一（ ）开关 一（ ）门 一（ ）竖杆 一（ ）住宅 一（ ）装置好的话有给分. 请填上表示"看"的词语:小星聚精会神地看,他在( ) 写聚精会神地看的词语10个 表示聚精会神地看的词语 写表示看的词语：恭敬地看（）,聚精会神地看（） I am afraid that I have to go.什么句型! 两辆汽车同时从相距654千米的两地相对开出,甲车每小时行驶75.5千米,乙车每小时行驶84.5千米..经过几小时还相距78千米?