中国民俗文化

如果a波与b波干涉后形成的c波,其振幅大于a波而小于b波,请问该干涉是相长干涉还是相消干涉. 求二次供水泵房设备安装规范如题,例如放置设备的承台高度,设备离墙距离,管道离墙距离等. 二次供水设备是什么? 二乙基次磷酸铝 cas号是225789-38-8的海关编码谁知道这个产品的海关编码 铝的符号是什么 business control是什么意思 The teacher didn't tell me________to have a test next week.The teacher didn't tell me_______to have a test next week.A．if we are going B．if we were goingC．that we are going D．we are going请说明原因, 关于高一圆周运动概念的一个问题物体原地转圈（速率不变）,算不算匀速圆周运动?如果是半径怎么算?0 二次供水设备有什么优势 Horror films are t____.I do not like watching them at all. I did not like ____of them这个空可以填all吗?为什么答案是either 将“Do you like sweaters?Do you like them at low prices?改写为陈述句. 加拿大有什么特色 机油是从石油提炼来的吗 Happy weekend是什么意思 first things first是什么意思 英语翻译Asyou can see,we use many different strategies to protect thesense of self.But do these types of defenses actually benefitself?at first,it appears that they do because they caneffectively ward off imminent threats to the self. 英语翻译懂的告诉下```All the things are difficult fore be first For things to chang.I must chang first翻译成中文是什么意思 在word中,如何将“001,002……”等替换为“第001章,第002章” 树木的年轮能告诉我们哪些信息?大家怎样想的 象牙的断面上可以看出类似树木年轮的纹路吗?听说可以根据象牙判断大象的年龄,就是看断面上所谓的“年轮”.请问真的是这样吗? I will leave for Hangzhou this weekend.I （ ）（leave） for Hangzhou this weekend.原问题是这样的。am leaving 写will leave 也可以？ I WILL LEAVE YOU. WILL YOU HAPPY? 这句话对不对?如题. 为什么氧化还原反应配平中的“万能配平法”是一种错误的方法? We live ( ) a new house. First things first.中后一个first可以不可以理解为动词呢? 英语翻译具体语境：This is really a good photo of youI think so,too.Who took it?I am not sure.I think it was taken by my Uncle George.He is a photographer. 拉萨市平均海拔是多少 This question is really___.I suggest you shThis question is really___.I suggest you should ask the teachers___deal with it.a.confusing,how tob.confusing,what toc.confused,how tod.confused,what to 制造业和轻工业有什么区别啊 珠江三角洲轻工业基地在引进____的优势下,发展了以____为主的多种加工工业和制造业等.谁能知道杂填