A、<img src="http://img.wangxiao.cn/examfiles/imgcache/attached/image/20130111/2013011114550390390.jpg" alt="" border="0" />
B、<img src="http://img.wangxiao.cn/examfiles/imgcache/attached/image/20130111/20130111145525732573.jpg" alt="" border="0" />
C、<img src="http://img.wangxiao.cn/examfiles/imgcache/attached/image/20130111/2013011114550682682.jpg" alt="" border="0" />
D、<img src="http://img.wangxiao.cn/examfiles/imgcache/attached/image/20130111/20130111145595449544.jpg" alt="" border="0" />
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