题目内容

肾上腺受体激动剂的化学不稳定性表现在

A. 饱和水溶液呈弱碱性
B. 易氧化变质
C. 易水解
D. 易发生消旋化

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肾上腺受体激动剂的构效关系包括

A. 具有β-苯乙胺的结构骨架
B. β-碳上通常带有醇羟基
C. N取代基对β受体效应的相对强弱有显著影响
D. 苯环上带有不同的取代基

Turn the following sentences into English, using as many of the words and phrases you have learned from the text as possible:接受这份工作就得经常在周末上班，但约翰并不在意。(involve)

Turn the following sentences into English, using as many of the words and phrases you have learned from the text as possible:众所周知，肺癌至少部分是由于吸烟过多而引起的。

Turn the following sentences into English, using as many of the words and phrases you have learned from the text as possible:我祖父母说，发明电脑的那个人曾住在他们那个地段。