黄芩苷+黄连素
A.pH值改变产生沉淀B.水解产生沉淀C.生物碱盐溶液的沉淀D.复分解产生的沉淀E.氧化产生的沉淀对下列药物溶液产生浑浊或沉淀的机理进行分析:
参考答案:C
下面是一张Millie班的课程表,每节课为45分钟。 请根据课程表中的信息回答下列问题。
小题1:Millie’s favorite subject is art and music, her favorite day is _________.
A.Monday
B.Tuesday
C.Friday
D.Saturday小题2: —When can the students have lunch? --They can have lunch at _________.
A.eight
B.twelve
C.two p.m.
D.five小题3:--How many days do they go to school in a week?
--They go to school _________ days a week.
A.four
B.six
C.five
D.seven小题4:--When do they have computer? --They have computer on _________.
A.Friday
B.Monday
C.Wednesday
D.Thursday小题5:-How long do they have gymnastics in the morning?
--They have gymnastics for _________. minutes (分钟)。
A.ten
B.fifteen
C.twenty
D.twenty–five
诊断额窦恶性肿瘤时,下列哪种位置摄影最佳()
A.华氏位
B.前额切线位
C.头颅侧位
D.柯氏位
E.汤氏位