请问GetRecordSet建立的记录集中怎么使用Find

class ADOConn
{
public:
    ADOConn(void);
    _ConnectionPtr m_pConnection;
    _RecordsetPtr meaningRecordset;
public:

    ~ADOConn(void);
    void OnInitADOConn();
    BOOL ExecuteSQL(_bstr_t bstrSQL);
    void ExitConnect();
public:
    _RecordsetPtr& GetRecordSet(_bstr_t bstrSQL);
};            


void ADOConn::OnInitADOConn()

{
    CoInitialize(NULL);
    try
    {

        m_pConnection.CreateInstance(__uuidof(Connection));        

        _bstr_t strConnect = "Provider=SQLOLEDB; Server=.;Database=pkword;Integrated Security=SSPI;";

        m_pConnection->Open(strConnect,"","",adModeUnknown);

    }
    catch(_com_error e)

    {
        AfxMessageBox(e.Description());

    }
    AdoConnok=true;

}
void OpenWordRecordset()
{
    _bstr_t strsql="SELECT  word,content FROM  meaninglib";

    pConn->meaningRecordset=pConn->GetRecordSet(strsql);
    //目的是内存中建立词库集，避免经常查询数据库，
    //这一步是成功的，可以从pConn->meaningRecordset读出数据到数组中。

}

int Seekwords(CString &pPhrazes){
    
    //需要频繁搜索数据库
    //希望从meaningRecordset中查询，而不是从sever 2005中查询，但不成功

    _bstr_t strsql="word='"+pPhrazes+"'";

    //pConn->meaningRecordset->MoveFirst();//有这句会出错,所以去掉，但还是出错

    int wordnum=pConn->meaningRecordset->Find(strsql,0,adSearchForward,"");    //[color=#FF0000]出[/color]错

    return -1;  //词库中未发现 

}

//出错中断后跳到这里：e:\chigramedit\x64\msado15.tli
inline HRESULT Recordset15::Find ( _bstr_t Criteria, ADO_LONGPTR SkipRecords, enum SearchDirectionEnum SearchDirection, const _variant_t & Start ) {
    HRESULT _hr = raw_Find(Criteria, SkipRecords, SearchDirection, Start);
    if (FAILED(_hr)) _com_issue_errorex(_hr, this, __uuidof(this));
    return _hr;//监视    _hr    -2146824584    HRESULT

}

try
{
//你的ADO代码
}
catch (_com_error& e)
{
AfxMessageBox(e.Description());
}