BTN是啥?

BTN是啥? BTN Tariff number BTN Tariff number 韩国BTN是什么啊? 英国的BTN是什么 角接触球轴承7311BTN中BTN什么意思 BTN/H.S.CODE.8465.99, 一首英文歌,歌词是 there 什么world 后面什么do you have dog 什么之类的 有谁知道么?在BTN的carbon tax里面的两小孩拿起球的时候有放到是什么音乐? button btn=（button）sender是什么意思啊 请问句中的BTN是什么意思?For import declaration needing your assistance to proving us BTN for this Item private void button11_Click(object sender,EventArgs e){Button btn = (Button)sender;textBox1.Text = textBox1.Text + + btn.Text + ;}private void button12_Click(object sender,EventArgs e){Button btn = (Button)sender;textBox1.Text = textBox1.Text android线性布局,如何居中?我刚学的,下面是垂直线性布局.为什么我的第二个btn不能够垂直且水平居中,为什么这些属性不能够见名知义,这样设置哪里错了?出来的效果只是显示水平居中而以.垂 btn = (Button)sender;这句话的意思请解释谢谢! 紧急求助……在C#中btn.Click += new System.EventHandler(***);括号里面的***能够写成带参数的函数吗?在C#中btn.Click += new System.EventHandler(***);括号里面的***能够写成带参数的函数吗?如btn.Click += new System.E html a标签中的文字怎么居中对齐<style type="text/css">.btn:hover{font-size:22px;}.btn{color:#000;background:#eaeaea}.a{text-decoration:none;font-size:20px;font-weight:bold;width:222px;height:100px;border:1px solid red}</ 英语翻译72 SETS WOODWORKING MACHINE:MODEL:MQ442B FOB CHINA BTN/H.S.CODE.8465399 1)MANUALLY SIGNED INVOICE IN FIVE FOLD CERTIFYING THAT GOODS ARE AS PER PURCHASE ORDER NO.918 OF 28,05.2005 AND QUOTING L/C NO.BTN/H.S.NO AND SHOWING THE FOB VALUE OF 英语翻译1/2sideseams/c_back seam shell & lining * (1)cut lapel buttton hole (left)keyhole btn.hole with crossbar * notch lapel* * * 1/2 L dart * * press open sleeve set seam front 2; finish press front 2 * very natural VN 英语翻译laser_nodes = 1;btn.onRelease=function(){node = _root.attachMovie(laser,laser_+laser_nodes,laser_nodes,{_x:Math.random()*460+20,_y:Math.random()*310+20});node.onPress = function() {startDrag(this);};node.onRelease = function() {stopDr