The statement from mars didn 't say whether its optima brand is sold in china , and a spokesman didn 't immediately answer a request for more information .
mars公司该声明中没有说明optima牌子是否有在中国销售，发言人也没有及时的进一步做出答复。
Staff at a local pet shop and clinic , the shanghai naughty family pet co. , said they had seen about 10 dogs fall sick after eating optima dog food .
The paper focuses on institution efficiency to analyze the regionalism structure and influence factors , and then it constructs the theoretic optima choice model for regionalism .
