Animals suffered at the hands of Man ___ they were destroyed by people to make way for agricultural

had to provide food for more people.[ ]

A. in which    

B. for which

C. so that            

D. in that

下列指标作为粪便指示菌检出的卫生学意义从大到小依次为（）。

A.大肠埃希氏菌，耐热大肠菌群，总大肠菌群

B.大肠埃希氏菌，总大肠菌群，耐热大肠菌群

C.总大肠菌群，耐热大肠菌群，大肠埃希氏菌

D.耐热大肠菌群，总大肠菌群，大肠埃希氏菌