我国最早的一部具有国家药典性质的本草是()
A.《新修本草》
B.《开宝本草》
C.《图经本草》
D.《经史证类备急本草》
E.《本草纲目》
参考答案:A
表现为刺激阈增高,反应反而减弱。给予强刺激才能引起一般感觉。应当是()
A.感觉过敏
B.感觉倒错
C.感觉过度
D.感觉减退
E.感觉缺失
— I went to your home yesterday afternoon, but your mother was alone at home.
— Oh, I'm sorry. I ______ football with my classmates at that time. [ ]
A. play
B. played
C. was playing
D. have played