You are creating an ASP.NET Web site. The site has a master page named Custom.master. The code-behind file for Custom.master contains the following code segment. You create a new ASP.NET page and specify Custom.master as its master page. You add a Label control named lblRegion to the new page. You need to display the value of the master page’s Region property in lblRegion. What should you do？ （） ["Add the following code segment to the Page_Load method of the page code-behind file. CustomMaster custom = this.Parent as CustomMaster； lblRegion.Text = custom.Region；","Add the following code segment to the Page_Load method of the page code-behind file. CustomMaster custom = this.Master as CustomMaster； lblRegion.Text = custom.Region；","Add the following code segment to the Page_Load method of the Custom.Master.cs code-behind file. Label lblRegion = Page.FindControl（"lblRegion"） as Label； lblRegion.Text = this.Region；","Add the following code segment to the Page_Load method of the Custom.Master.cs code-behind file. Label lblRegion = Master.FindControl（"lblRegion"） as Label； lblRegion.Text = this.Region；"]
被害人脾破裂引起失血性休克而死亡，其脾破裂属：（） ["绝对致命伤","条件致命伤","非致命伤","重伤","以上都不是"]
环境保护评价指标一般项中，“不应使用煤作为现场生活的燃料”属于（）评价点之一。 ["资源保护","人员健康","扬尘控制","废弃排放"]
下列哪种说法是错误的（） ["ReAlMeDiA文件优点是流媒体文件，音质较好。缺点是占用带宽大，不能用于网络广播、网上教学和网上点播","WinDowsMeDiA文件基于网络流媒体技术的音频格式。其优点是功能齐全，使用方便，支持无失真压缩、失真压缩和语音压缩等压缩方式","WAV文件是较通用的音频格式，其优点是保真度高，适用于音频原始素材的保存缺点是文件数据量大，不易传输与携带","MP3文件是压缩比例较高，声音质量较好的音频格式。其缺点是该格式与WAV格式相比，音质较差"]
数据流程图可以用少数几种符号综合地反映出信息在系统中的流动、处理和存储情况。
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