首先，我们要创建一个简单的请求-响应操作。

We will first create a simple request-response operation.

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在wsdl术语中，查看股票操作是一个请求—响应操作。

In WSDL terms, the check stocks operation is a request-response operation.

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当接收活动属于请求-响应操作时，应答活动会返回操作的输出。

When a receive activity belongs to a request-response operation, a reply activity returns the output of the operation.

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