\begin{table}%t7
\caption{\label{tab_cr}\hii\ regions in the central regions without direct \te~\mbox{measurement}.}
\par
%\centering
\par
\begin{tabular}{llllll}
\hline
\hline\noalign{\smallskip}
  ID     & RA        & Dec                       &  $R_{\rm GC}$ &  
\te & 12 + log(O/H) \\
           & \multicolumn{2}{c}{J2000.0}       &    (kpc)          & (K)    & dex \\
& (1)     & (2)        & (3)                       & (4)& (5)  \\
\hline
BCLMP~93a  & 1:33:52.6 & 30:39:08    & 0.23           &  8700        & 8.53\tablefootmark{a}\\
BCLMP~301h  & 1:33:52.6 & 30:45:03     & 1.45         &  9200        & 8.60 \\
BCLMP~4a    & 1:33:59.5 & 30:35:47       &  1.48        &   9200        & 8.33\\
M 33-SNR~64 & 1:34:00.1 & 30:42:19       &  0.87         &  8950        & 8.40\\
\hline
\end{tabular}
\tablefoot {\tablefoottext{a}{V\'{\i}lchez et~al. \cite{vilchez88} (CC93) adopted \te~= 6000~k  obtaining 12~+~log~(O/H)~=~9.02.}}
\end{table}