目前，人们把利用微生物在有氧和无氧条件下的生命活动来制备微生物菌体或其代谢产物的过程称为发酵。
参考答案：对
A group of tourists reached a remote small village, at the west end of which _____, and expected to meet a countryman.[ ]
A. stood an old temple
B. standing an old temple
C. did an old temple stand
D. an old temple stood
未来保险市场竞争的关键在于保险产品所能提供的______。
A．附加价值
B．保障水平
C．投资收益
D．附加服务
