A．<TABLE cellSpacing=0 cellPadding=0 width="90%" border=0>
<TBODY>
<TR>
<TD vAlign=top>混凝土 </TD></TR></TBODY></TABLE>
B．<TABLE cellSpacing=0 cellPadding=0 width="90%" border=0>
<TBODY>
<TR>
<TD vAlign=top>水泥砂浆 </TD></TR></TBODY></TABLE>
C．<TABLE cellSpacing=0 cellPadding=0 width="90%" border=0>
<TBODY>
<TR>
<TD vAlign=top>水泥净浆</TD></TR></TBODY></TABLE>