必应搜索 API 示例代码不起作用

有没有人让必应 API C# 示例代码正常工作？ 我指的是此页面上的Web示例：https://skydrive.live.com/view.aspx?resid=9C9479871FBFA822!112&app=Word&authkey=!ANNnJQREB0kDC04

我也在使用 BingSearchContainer.cs 文件

string rootUri = "https://api.datamarket.azure.com/Bing/Search";
var bingContainer = new Bing.BingSearchContainer(new Uri(rootUri));
var accountKey = "Zasjkdhfkajshdfkjhasdkfjhetc";
bingContainer.Credentials = new NetworkCredential(accountKey, accountKey);
// Build the query:
// Example says "var webQuery = .... I just tried this
DataServiceQuery<WebResult> webQuery = bingContainer.Web("Testing", null, null, null, null, null, null, null);
// This returns a 403
// Example says "var results = .... I just tried this too...
IEnumerable<WebResult> results = webQuery.Execute();

我还尝试了以下方法：

bingContainer.IgnoreMissingProperties = true;

。但这没什么区别...

谢谢。