纸色谱检识皂苷时常用的显色反应是() A.IR光谱 B.Molish反应 C

题型:单项选择题 B1型题

问题:

纸色谱检识皂苷时常用的显色反应是()

A.IR光谱

B.Molish反应

C.Girard试剂

D.中性醋酸铅试剂

E.三氯醋酸反应

考点:主管中药师三萜类化合物三萜类化合物题库
题型:单项选择题 B1型题

BEIJING, March 7 (Xinhua) -- Beijing will take a series of measures to tackle its environmental problems and is confident they will not derail its bid to host the 2022 Winter Olympics, an official said on Thursday.

Beijing has formulated 84 measures to deal with environmental issue and air pollution, said Li Shixiang, Beijing's executive vice mayor, at the ongoing annual session of the National People's Congress, the top legislature.

Beijing is expected to cut its current coal consumption by more than half to 10 million tonnes a year by 2017. It will also impose tough controls over industrial pollution and dust fall from construction sites, while reducing the number of newly added vehicles every year to 150,000, said Li.

He said the Chinese capital will benefit from the experience of successfully holding the 2008 Beijing Olympics.

Beijing and Zhangjiakou City in neighboring Hebei Province will launch a joint bid to host the 2022 Winter Olympic Games, the Chinese Olympic Committee (COC) announced in early November 2013.

Beijing will bid to stage the ice events while Zhangjiakou will seek hosting rights for snow sports, according to the COC.

Beijing has been plagued by choking smog and it is a great concern for its chances of hosting the Winter Olympics. 

小题1:What does the underlined word “plagued”mean in the last paragraph?

A.annoyed

B.destroyed

C.striked

D.broken小题2:Which statement is true according to the passage?

A.Beijing will cut its current coal consumption.

B.Beijing will reduce the number of newly added vehicles every year.

C.Beijing will firmly control industrial pollution and dust fall from construction sites.

D.Smog will hurt Beijing's Winter Olympics bid.

题型:单项选择题 B1型题

蒲松龄在所著的《聊斋志异》中描述了一座海中都市,那里人都以丑为美,以美为丑,这篇故事的题目是下列哪一个?()

A.《罗刹海市》

B.《八大王》

C.《仙人岛》

D.《辛十四娘》

题型:单项选择题 B1型题

皮层下较高级的感觉中枢位于()

A.网状结构

B.丘脑

C.下丘脑

D.小脑

题型:单项选择题 B1型题

自从有了电视,情形有了难以料想的变化,明星的概念也大大泛化。一方面从明星生产的角度看,周期更短,速度更快。另一方面,即更关键之点是有了电视和网络,明星不一定需要借助角色成名,明星可以是扮演自身,就像电视主持人。由此,电视不仅生产了演艺明星,还生产体育明星、演讲明星,还有大众明星。到了大众明星秀这一步,明星已经不是遥不可及,他们早已脱下神秘的面纱,成为邻家男孩和女孩。当看电视成为日常生活的一个部分,明星就是日常生活的一个部分。
下列有关明星概念“泛化”的说法,不正确的一项是( )。

A.有了电视,明星的生产,变得周期更短,速度更快
B.电视上的明星,只需扮演自身,不必借助于外在的角色
C.电视娱乐节目使明星大众化,人人都可以成为明星
D.明星的神秘面纱已然褪去,成为明星的大门也洞然敞开

题型:单项选择题 B1型题

《中华人民共和国药品管理法》规定,发运中药材包装上必须附有( )

A.专用许可证明
B.检验报告书
C.质量合格标志
D.注册商标
E.使用说明书

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