食品中检出大肠菌群表明食品可能（）

A．受霉菌污染

B．受酵母菌污染

C．受腐败菌污染

D．受肠道致病菌污染

Dump sewage into oceans and rivers is a serious form of pollution.

A. Having dumped sewage
B. Being dumped sewage
C. Dumped sewage
D. Dumping sewage