<a href='http://www-1.ibm.com/certify/certs/a4_index.shtml' target='_blank'>http://www-1.ibm.com/certify/certs/a4_index.shtml</a> <!--emo&:awkard:--><img src='style_emoticons/default/awkard.gif' border='0' style='vertical-align:middle' alt='awkard.gif' /><!--endemo--> <br />   这里面可以用来选择的课程：）~~~