定义必应地图查询c#返回的小数数

我注册了mscodecchallenge.net，目前正在进行必应地图挑战赛。我目前有一个问题，但得到正确的结果。

要通过所包含的单元测试，我需要检索地址"Frydenlunds Alle 6 2950 DK"的坐标(55.8408508,12.5594797)(纬度，经度)以通过测试，但是我当前的代码返回的小数太少而无法通过。我当前的结果是(55.84085,12,55948)。是否有可能在必应地图API返回的结果中声明小数的数量?我试过使用查询和非结构化url，但结果相同。

我的当前代码和来自服务的结果XML:

c#

    public double[] Execute(string addressLine, string postalCode, string countryCode)
    {
        var bingKey = "anonymised";
        var queryUrl = CreateURL(addressLine, countryCode, postalCode, bingKey);
        WebClient client = new WebClient();
        Stream data = client.OpenRead(queryUrl);
        StreamReader reader = new StreamReader(data);
        string result = reader.ReadToEnd();
        data.Close();
        reader.Close();
        using (XmlReader xmlReader = XmlReader.Create(new StringReader(result)))
        {
            xmlReader.ReadToFollowing("Latitude");
            var lat = xmlReader.ReadElementContentAsDouble();
            xmlReader.ReadToFollowing("Longitude");
            var lon = xmlReader.ReadElementContentAsDouble();
            double[] resultArray = new double[] { lat, lon };
            return resultArray;
        }
    }
    private string CreateURL(string address, string countrycode, string postalcode, string bingKey)
    {
        return string.Format(
            GetUrl(), 
            Uri.EscapeDataString(address), 
            Uri.EscapeDataString(postalcode), 
            Uri.EscapeDataString(countrycode),
            Uri.EscapeDataString(bingKey));
    }
    private string GetUrl()
    {
        //return "http://dev.virtualearth.net/REST/v1/Locations?countryRegion={2}&postalCode={1}&addressLine={0}&includeNeighborhood=0&maxResults=10&key={3}&output=xml";
        return "http://dev.virtualearth.net/REST/v1/Locations?q={0}, {1}, {2}&key={3}&output=xml";
    }

服务的XML响应:

<?xml version="1.0" encoding="UTF-8"?>
<Response>
    <StatusCode>200</StatusCode>
    <StatusDescription>OK</StatusDescription>
    <AuthenticationResultCode>ValidCredentials</AuthenticationResultCode>
    <ResourceSets>
        <ResourceSet>
            <EstimatedTotal>1</EstimatedTotal>
            <Resources>
                <Location>
                    <Name>Frydenlunds Allé, 2950 Vedbæk, Denmark</Name>
                    <Point>
                        <Latitude>55.84085</Latitude>
                        <Longitude>12.55948</Longitude>
                    </Point>
                    <BoundingBox>
                        <SouthLatitude>55.83974</SouthLatitude>
                        <WestLongitude>12.55612</WestLongitude>
                        <NorthLatitude>55.84159</NorthLatitude>
                        <EastLongitude>12.56277</EastLongitude>
                    </BoundingBox>
                    <EntityType>RoadBlock</EntityType>
                    <Address>
                        <AddressLine>Frydenlunds Allé</AddressLine>
                        <AdminDistrict>Capital Region</AdminDistrict>
                        <AdminDistrict2>Rudersdal</AdminDistrict2>
                        <CountryRegion>Denmark</CountryRegion>
                        <FormattedAddress>Frydenlunds Allé, 2950 Vedbæk, Denmark</FormattedAddress>
                        <Locality>Vedbæk</Locality>
                        <PostalCode>2950</PostalCode>
                    </Address>
                    <Confidence>Medium</Confidence>
                    <MatchCode>Good</MatchCode>
                    <MatchCode>UpHierarchy</MatchCode>
                    <GeocodePoint>
                        <Latitude>55.84085</Latitude>
                        <Longitude>12.55948</Longitude>
                        <CalculationMethod>InterpolationOffset</CalculationMethod>
                        <UsageType>Display</UsageType>
                    </GeocodePoint>
                    <GeocodePoint>
                        <Latitude>55.84085</Latitude>
                        <Longitude>12.55948</Longitude>
                        <CalculationMethod>Interpolation</CalculationMethod>
                        <UsageType>Route</UsageType>
                    </GeocodePoint>
                </Location>
            </Resources>
        </ResourceSet>
    </ResourceSets>
</Response>