Armp公理系统的三条推理规则是自反律、增广律和________。
参考答案:传递律
低温养护中药可以防止饮片()
A.生虫
B.霉变
C.变色
D.走油
E.散气
—Hi,Jim. I_______ you for a long time.
—I_______ in Beijing for two months. I’ve just comeback. [ ]
A. didn’t see; have been
B. haven’t seen; was
C. didn’t see; was
D. haven’t seen; have been