麝香中代表性的大环酮类化合物是() A.麝香酮 B.降麝香酮 C.雄性酮

题型:单项选择题 A1型题

问题:

麝香中代表性的大环酮类化合物是()

A.麝香酮

B.降麝香酮

C.雄性酮

D.氨基酸

E.肽类

考点:中药学(医学高级)中药鉴定学中药鉴定学题库
题型:单项选择题 A1型题

2013年9月23日,中国人民银行发行“和”字书法——行书普通纪念币。消息一出就引发了收藏爱好者和普通市民的极大兴趣,很快就被抢购一空。一般来说,未来这枚普通纪念币的市场交易价格趋势最有可能是:(    )

A.价格一直上涨,因为它的价值量在不断增加

B.价格一直下跌,因为它会由供不应求转为供过于求

C.价格出现波动,因为市场供求关系在不断变化

D.价格保持不变,因为普通纪念币的价值是一定的

题型:单项选择题 A1型题
根据短文内容,从下框的A—F选项中选出能概括每一段主题的最佳选项。选项中有一项为多余选项。
A、One Important Factor in Conversation
B、It’s not Difficult to Talk Well.
C、A Famous Master of the Art
D、Pronunciation and Usage
E、What Makes a Good Talker
F、Talk with Strangers
小题1:_________________
The ancient Greeks were very good at making conversations, and the greatest talker of them all was philosopher Socrates. His pupil, Plato, recorded some of his supposed conversations, and we read them in ‘The dialogues’ of Plato. In many classrooms today, Socrates’ method of teaching is used.
小题2:_________________
The best talkers appear to have a great interest in and love for their fellow creatures; a curiosity about the world in general; some powers of observation and reflection; respect for their own opinions and tolerance for those of others; and quick thinking. And they talked for the fun of it, not to show off their knowledge.
小题3:_________________
A good voice must have the help of good speech, whose two assistants are clear enunciation(清晰发音)and correct pronunciation. Poor enunciation may suggest to your listeners that you lack consideration, and that you are not especially concerned about their opinion of you.
小题4:________________
Pronunciation is settled by common agreement of the community or group speaking the particular language or dialect. For standard pronunciation of words, a dictionary is your best friend. The usage of words is somewhat the same as pronunciation. To be accurate in your use of words is very important in your conversation. Dictionaries usually provide the usage of words. So whenever you meet with new words, it is a good idea to look them up in the dictionary.
小题5:_________________
Think of meeting a stranger as a chance to have a good time to talk, to make a friend. Look with a smile directly into the other’s eyes when you are introduced, and shake hands with a firm, friendly clasp. This will give you confidence. Then try to have a smooth and pleasant conversation with him.
题型:单项选择题 A1型题

二维表中的列称为关系的______。

题型:单项选择题 A1型题

行政执法人员的权利和义务是什么?

题型:单项选择题 A1型题

下边漫画《中国腾飞,坚强保证》启示我们,作为公民()

A.要了解税收基本特征

B.要参与税收征管

C.要依法诚信纳税

D.要杜绝偷漏税行为

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