It’s reported that a UFO stopped over a mountain village for a while and then disappeared in the direction ______ it had come.

A．in which

B．from which

C．of which

D．by which

宴会成本核算程序为：明确宴会服务方式和标准→______→安排菜点种类和数量→组织生产并检查实际成本消耗→分析成本误差。

A．明确宴会规模

B．建立宴会管理组织机构

C．明确宴会主题

D．计算可容成本