【简答题】A . 小檗碱 B . 小檗胺 C . 硫酸莨菪碱 D . 樟柳碱 E . 麻黄碱 41 .属于生物碱盐的是 42.属于酚性生物碱的是 43.属于季铵碱的是 44.属于挥发性生物碱的是 45.属于两性生物碱的是
【单选题】听力原文:W: Is your sister older than you? M: No, she is 2 years younger. She is 18. Q: How old is the man? (4)
【单选题】How many years did she refused to speak?