这个SOAP消息什么类型啊？

[johnshen0211]

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<VerifyCard xmlns="http://www.bank.com/ws/">
<strServer>johnshen</strServer>
<strUser>sa</strUser>
<strPwd></strPwd>
<strIssuer>建行</strIssuer>
<strCardNumber>2206000318466846</strCardNumber>
<strCardName>John</strCardName>
<strExpDate>2004-8-31</strExpDate>
<curAmount xsi:type="xsd:double">100.0</curAmount>
</VerifyCard>
</soapenv:Body>
</soapenv:Envelope>

是文档类型还是RPC啊？有什么好方法可以区别吗？