【简答题】下表为部分短周期主族元素的相关信息. 元素 相关信息 T T的单质能与冷水剧烈反应,所得强碱性溶液中含有两种电子数相同的阴、阳离子 X X的原子最外层电子数是其内层电子数的三倍 Y 在第三周期元素中,Y的简单离子半径最小 Z T、X、Z组成的36电子的化合物A是家用消毒剂的主要成分 请回答下列问题: (1)Z元素在元素周期表中的位置是第______周期第______族. (2)元素T与X按原子个数...
【单选题】人在寒冷环境中,主要通过下列哪种方式增加产热
【单选题】人在寒冷环境中,主要通过下列哪种方式增加产热?
【单选题】听力原文:W: Hello. Can I help you? M: Yes, er... I am going to see the West End. W: How much time de you have? M: Just one day. W: Well, what do you particularly want to do? M: I want to visit museums, ar...
【简答题】Which sentence from the article states a MAIN idea of the entire article?A. Yolanda's grandfather is Martin Luther King, Jr. B. "I have a dream that enough is enough!" Yolanda said at March for Our Li...
【单选题】听力原文:W: Hello. Can I help you? M: Yes, …er...I am going to see the West End. W: How much time do you have? M: Just one day. W: Well, what do you particularly want to do? M: I want to visit museums, ar...
【多选题】如图所示,根据 基尔霍夫电流定律 可得, Σ I 入 有哪些电流( )?
【简答题】“会计电算化”一词是1981年在长春市召开的“财务、会计成本应用电子计算机专题讨论会”上正式提出的。( )
【单选题】听力原文:W: Hello. Can I help you? M: Yes, er. . . I am going to see the West End. W: How much time do you have? M: Just one day. W: Well, what do you particularly want to do? M: I want to visit museums, ...
【简答题】“会计电算化”一词是1981年在长春市召开的“财务、会计成本应用电子计算机专题讨论会”上正式提出的。( )