No he just has an accent because he is from China. But he is not deaf .
Yanxun Zhang has written: 'Lei di kang yi' 'Su feng di ri zi'
Di si zhang hua - 2010 is rated/received certificates of: Singapore:NC-16
Yun Zhang has written: 'Di li li zhu'
Zhitong. Zhang has written: 'Wen nuan di hai'
Jianzhi Zhang has written: 'Hong lou ban mu di'
Jijia. Zhang has written: 'Qing Zang Gaoyuan da qi di pin bian hua di yan jiu'
Yuanji Zhang has written: 'Zhonghua min zu di ren ge' 'Zhang Yuanji shu zha'
Xianzhe Zhang has written: 'Dao di yao cai tu jian'
Yantian Zhang has written: 'Nong qi ye di fa zhan'
Gongchang. Zhang has written: 'Zhongguo ren di qi si miao xiang'
Xutang Zhang has written: 'Yi ge ji zhe di shou ji'
Wentang. Zhang has written: 'Biostratigraphy of China' 'Zhongguo di ao tao xi'