题目内容

洋金花中的主要化学成分是( )

A. 阿托品
B. 莨菪碱
C. 苦参碱
D. 东莨菪碱

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影响生物碱碱性强弱的因素有()

A. 氮原子的杂化方式
B. 诱导效应
C. 共轭效应
D. 氢键效应

下列能溶于水的是( )

A. 大多数生物碱盐
B. 具有酚羟基的生物碱
C. 仲胺生物碱
D. 季铵型生物碱

凡是含氮的化合物均可视为生物碱。

A. 对
B. 错

What is the main idea of the news report?

A. More people buy education insurance.
B. The cost of raising a child in the UK has increased.
C. Many families cannot afford their children’s education.
D. Parents buy more expensive products for their children.

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