A.吲哚类B.有机胺类C.喹喏里西啶类D.莨菪烷类E.异喹啉类

马钱子中的生物碱主要是

参考答案：A

制定化学教学目标的直接依据是（　　）。

教师通过口头语言系统连贯的向学生传授知识的方法是（　　）。

化学实验设计的首要原则是（　　）。

下列表述能突出体现中学化学教学过程特殊性的是（　　）。

近年来．随着人类对能源危机、全球气候、环境变化等问题的广泛关注，STSE思想也受到了日益重视。STSE的含义是（　　）。

The old lady has developed a _______ cough which cannot be cured completely in a short time.

Wise people will seek common interest, _______ the unwise will focus only on difference.

The police were seeking more information to find out _______ the rich man.

——Nothing special. Take a special pair of glasses _______ the wind there is strong and cold.

This crop has similar qualities to the previous one, _______ both wind resistant and adapted to the same type of soil.

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