They all returned to the village ______ that the danger was over.

A．convincing

B．convinced

C．to convince

D．having convinced

主要表现为剧烈呕吐，腹泻轻、体温正常，常见于什么菌引起的食物中毒（）

A.沙门菌

B.嗜盐菌

C.葡萄球菌

D.肉毒杆菌

E.副溶血弧菌