问题 单项选择题

栀子的主要成分( )

A.木脂素
B.挥发油
C.环烯醚萜类
D.生物碱
E.蒽醌

答案

参考答案:C

解析: 栀子含栀子苷、羟异栀子苷、山栀苷、栀子新苷等多种环烯醚萜类及苷类。

材料题

“人固有一死,或重于泰山,或轻于鸿毛”

请回答:

(1)上述材料出自哪位历史人物?他生活在什么时代?    

                                                                                                                                                            

(2)这段话的意思是什么?    

                                                                                                                                                            

(3)他的主要贡献是什么?如何评价他? 

                                                                                                                                                            

(4)读了这段话你有何感想?

                                                                                                                                                            

选择题