题目内容

麻黄碱可与三氯化铁反应显色

A. 对
B. 错

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沙丁胺醇是平喘药

A. 对
B. 错

富马酸酮替芬具有三环结构,三环中含有杂原子的H1受体拮抗剂

A. 对
B. 错

吗啡分子结构中具有酸碱两性,在空气中极易氧化变质

A. 对
B. 错

Question 5

A. Your Valentine can be your sisiter, your best friend or even your grandmother.
B. On Valentine's Day, avoid thinking of your beloved ones who have passed away.
C. Treat yourself and do something that really pleases you on Valentine's Day.
D. It's more important to celebrate those who show you their love the rest of teh year.

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