下列各个实验操作应注意先后顺序,请在横线上填入“先”或“后”字. (1)不慎将浓

题型:问答题

问题:

下列各个实验操作应注意先后顺序,请在横线上填入“先”或“后”字.

(1)不慎将浓硫酸沾在皮肤上:______用大量水冲洗;______用抹布拭去.

(2)用托盘天平称量固体药品前:______将游码放在标尺的零刻度;______调节螺母使天平平衡.

(3)实验室制氧气实验结束前:______停止加热;______将导气管从水槽中取出.

考点:称量器—天平化学实验操作的注意事项氧气的制取和收集
题型:问答题

Passage Three

Uffizi Tries to Outdo Louvre
Uffizi试图胜过卢浮宫
Italy is to try to turn the Uffizi gallery in Florence into Europe’s premier art museum, with an ambitious 56m euro scheme to double its exhibition space.
Giuliano Urbani, Italy’s culture minister, said the enlarged gallery would surpass "even the Louvre".
By the time work is completed, visitors to the extensively remodeled Uffizi will be able to see 800 new works, including many now confined to the gallery’s storerooms for lack of space.
The project—the outcome of nine months of intensive work by a team of architects, engineers and technicians—is a centrepiece of the cultural policy of Silvio Berlusconi’s government.
With refurbishment plans also afoot for the Accademia in Venice and the Brera in Milan, Italy is bent on securing its share of a market for cultural tourism that is threatened not just by the Louvre, but also by the " art triangle" of Madrid, which takes in the Prado, the Thyssen collection and the Reina Sofia museum of art.
Schemes for the expansion of the Uffizi’s exhibition space stretch back almost 60 years. The latest was mooted in the mid-1990s.
But the one adopted by the present Italian government has reached a far more advanced stage than any of its forerunners. Roberto Cecchi, the government official in charge of the project, said yesterday that all that remained to do was to tender for contracts.
The first changes will be seen as early as next week when a collection of pictures by Caravaggio and his school, including the artist’s Bacchus, currently crammed into a tiny room on the second floor, is to be moved to more expansive premises on the first.
Mr.Cecchi said the biggest problem faced by his team was "inserting a museum into a building that is itself a monument". The horseshoe-shaped Palazzo degli Uffizi, began in 1560, was designed by the artist and historian Giorgio Vasari.
The latest plans are bound to stir controversy, involving as they do the creation of new stairwells and lifts in the heart of the building. There has already been an outcry over one proposed element, a seven-storey, canopy-like structure for a new exit by the Japanese architect Arata lsozaki.
But Mr.Urbani said in Florence on Tuesday that part of the scheme was "subject to further evaluation".
At the heart of the plan is the opening up of the first floor of the vast building, which for decades was occupied by the local branch of the national archives.
This will allow visitors to follow a more extensive, and ordered, itinerary that would turn the Uffizi into what Antonio Paolucci, Tuscany’s top art official, called "a textbook of art history".
As at present, visitors will be channelled to the second floor, where they will be able to study early works by Cimabue and Giotto before moving on to admire the gallery’s extraordinary collection of Renaissance masterpieces, including Botticelli’s Primavera.
But most of what was painted after 1500 is to be moved down a storey to new exhibition space, and on the ground floor there will be a more extensive collection than at present of modern art. The overall increase in exhibition space will be from 6,000sq metres to almost 13,000.
Asked if the expansion might not increase the risk of inducing Stendhal’s syndrome—the disorientation, noted by the French novelist, in those who encounter dozens of Italian Renaissance masterpieces—Mr. Cecchi replied fatalistically, "Yes. It’ll double it".

What is attractive about the project, when completed, is that it will______.

A.increase Stendhal’s syndrome in visitors

B.no longer contain national archives on the ground floor of Uffizi

C.provide a systematic survey of art history

D.enable the display of works of several Renaissance painters

题型:问答题

患者女,68岁,因“呕吐、腹泻、意识障碍2d”来诊。既往有糖尿病病史。血糖44.2mmol/L。疑为高渗性高血糖状态。

患者血钠162 mmol/L,适宜的治疗是()

A.快速静脉滴注大量低渗性氯化钠溶液

B.静脉滴注大量等渗氯化钠溶液

C.等渗氯化钠溶液+大剂量胰岛素,静脉滴注

D.低渗氯化钠溶液+大剂量胰岛素,静脉滴注

E.低渗氯化钠溶液+小剂量胰岛素,静脉滴注

题型:问答题
如图所示为一磁流体发电机示意图,A、B是平行正对的金属板,等离子体(电离的气体,由自由电子和阳离子构成,整体呈电中性)从左侧进入,在t时间内有n个自由电子落在B板上,则关于R中的电流大小及方向判断正确的是(  )

A.I= ,从上向下

B.I= ,从上向下

C.I= ,从下向上

D.I= ,从下向上

题型:问答题

按照旅游资源的成因,可将其分为()。

A.地文旅游资源

B.自然旅游资源

C.人文旅游资源

D.社会旅游资源

题型:问答题

通过(),切实保障纳税人税前、税中、税后权益,营造公平、公正、和谐的税收环境。

A.健全征纳沟通机制

B.强化风险防范机制

C.建立争议化解机制

D.完善国际磋商协调机制

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