A、<img src="http://img.wangxiao.cn/examfiles/imgcache/attached/image/20140606/20140606225429_0114.jpg" alt="" />

B、<img src="http://img.wangxiao.cn/examfiles/imgcache/attached/image/20140606/20140606225446_0909.jpg" alt="" />

C、<img src="http://img.wangxiao.cn/examfiles/imgcache/attached/image/20140606/20140606225502_9985.jpg" alt="" />

D、<img src="http://img.wangxiao.cn/examfiles/imgcache/attached/image/20140606/20140606225523_6095.jpg" alt="" />