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我想做一个浓硫酸槽,用来脱漆,需要加温到60度,请问用什么材料做?可以用PVC吗? 42除以一减三分之一的和的意思是什么? 三、划分句子成分 1．我从此就看见许多陌生的先生我从此就看见许多陌生的先生.2．母亲那种勤劳简朴的习惯,母亲那种宽厚仁慈的态度,至今还在我心中留有深刻的印象.3．派出所的警察们 帮忙看下句子成分结构I'd say whenever you are going after something that belongs to you, anyone who is depriving you of the right to have it is criminal.请帮忙分析一下句子成分,不用翻译,只要说结构成分就行,尤其是you 分析这个句子的结构成分Caring for someone who loves as deeply and appreciates my efforts as much as Jimmmy does has enriched my life more than anything else ever could have.如 有几个从句 etc. 电暖器的热效率与加热时间或与所用档位之间的定性关系,并简要对结论提出合理解释用电暖器给室内升温,好像是档位越低,热效率越高 电暖器一直开着行吗?会对发热管有损伤吗?一般电暖器开多长时间就得关了? 某同学将等式8a-3b=4a-3b作如下变形:第一步,两边都加上3b,得到8a=4a.第二部,两边都除以a,得到8=4你认为他错在什么地方? 找个英语高手做师傅 主要帮我分析些句子的语法主要帮我分析些长短句子的语法 英语句子求语法分析啊,老师要求的.They had met at a cafe on Eighth Street and found their tastes in art,chicory salad and bishop sleeves so much in tune that the joint studio resulted.就是这句 本屌跪谢 英语长句的语法问题,Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the importance of biological diversity,the number of species in a particular ecosystem,to the health of the Ea 由等式5x-3y=0能变成x/3=y/5吗?若能,请说出每一步的变形过程及依据 诚恳的希望有英语比较好的朋友帮分析一下一个句子的语法,The way to learn a language is to practice speaking it as often as possible.还有IS 后为什么是 to practice而不能是practice. 求14道详细过程答案,给最佳答案 九年级数学希望帮助最好详细 如何确定污水中的氯离子的浓度 VB题 a=5 For k=1 To 0 a=a+k Next k Print k；a 听出风机的声音会长不高吗 对身体有坏处吗 怎么去除废水中的氯离子和钙离子 英语翻译one woman calls her daughter-mother and her mother-daughter relationship. 一个建筑工地九月份上半月用水泥18吨,下半月比上半月少用9分之1.下半月用水泥多少吨? 多少个电子所带的电荷量之和是1C, My uncle in Los Angeles.I oftn receive him letters.哪里用错了请改正 词语My lives receive请选择 l've got to letter from my uncle.(意思相同) l've_______a letter_______my uncle. 用所给词的正确形式填空,注意副词的位置.1.I_____(just receive) a letter form my brother.2.The play_____(already begin).3.I_____(never see)that man before.4._____you_____(get)the money back?5.Where is Tom?He_____(go)to the boss's offic 用阴影表示等边三角形的1/4,你有几种画法?至少画三种,相信你能办到!（要含图,或详尽文字解释!）急5:30之前回答是我满意的加财富值! 要根据实物图画电路图的方法,实用的,（可根据一个实物图做例子讲解） 请英语高手帮我分析下下面这句英文的句子结构,Scientists believe that much of what is called creativity is simply the ability to apply skills learned in one setting to problems in another setting.这句话理解有点困难 如何画二次函数图像?求别干讲概念,结合例子说明,比如F（X）=3X^2-3(也可以自己举例子)谢谢大家! 地壳中含量最高的前16种元素十六种 地壳内含量最高的元素 温度有没有最高极限?