下列哪种中药被誉为治久泻久痢之“涩肠止泻之圣药”（）
A.芡实
B.海螵蛸
C.罂粟壳
D.桑螵蛸
E.山茱萸
参考答案：C
In Japan and Korea, people ________ bow when they meet for the first time.
A．supposed to bow
B．are supposed to kiss
C．are supposed to bow
D．suppose by bowing
整个啤酒发酵过程可以笼统地分成酵母恢复阶段、（）阶段和（）三个阶段，这三个阶段并非独立分开。
