压力容器的性能指标

浓硝酸的保存为什么说“将浓硝酸保存在带橡胶塞的棕色试剂瓶中保存”是错误的? My uncle often washes his car on Sunday.改为一般疑问句怎么样改 浓硫酸和浓硝酸是否可以保存在铝制槽罐里 He often cleans his bedroom改为一般疑问句快 He often cleans his bedroom.(改为一般疑问句） 记忆的眼泪 袁世凯窃取辛亥革命的果实是什么?他为什么能窃取?他的目的又是什么 为什么说辛亥革命的果实被袁世凯窃取 The driver was at a loss when (a/不填）word came that he was forbidden to drive fordrive for speeding为什么不填东西啊?讲讲 the driver was at__ loss when __ word came that he was forbidden to drive for speeding.the driver was at__ loss when __ word came that he was forbidden to drive for speeding.A a ,the B .a ,\同样的题目,在两份资料上分别给出了不同的 辛亥革命前袁世凯做了什么有关的事? we mustn't talk to a driver when he ___(drive) 浓硫酸需要密封保存吗? 浓硫酸密封保存是因为其具有? 浓硫酸为什么需要密封保存? Tom likes to some soup for supper. A.drink B.eat drink能与soup搭配吗好记性上写的可以 但老师说不可以 我应该怎么办 英语I generally eat a balanced _______.A.diet B.food C.dine D.soup选什么,如何翻译 The song s_ very good the very good English teather和very the good English teather 和very good the 袁世凯篡夺辛亥革命胜利果实的主要原因 午餐的英文 请问北洋军阀的袁世凯和三国时期的谁比较像一点?清末的北洋军阀和汉末三国时期的西凉军阀相似吗? 北洋军阀是袁世凯的军队吗 袁世凯的统治为什么称为北洋军阀的统治? Sherry()a lot of help()her classmates after she gets out of hospital.A.takes;from B.gets;fromC.provides;with D.gets;by I just want you together这句英文是什么意思 Dear,please get me out of this place,I just want to be with you together,and son 我不知道我在你心里到底算什么的英文.拜托啦~O(∩_∩)O~ 我现在高一,立马升高二了,想在高三之前考大学英语四级,问一下难度有多大顺便问一下四六级的词汇量以及差距 求翻译作文：假设你参观了英国的温莎古堡,就以下内容写一篇100字作文.1.位于伦敦32公里的温莎镇,频临泰晤士河南岸,是世界现存的最古老,最大的有人居住的城堡.2.始建玉1066年,后经历代不 just sth.i know I've just remembered something这句话为什么用现在完成时,如果用一般现在时可以吗