氧氮杂环是新药研制过程中发现的一类重要活性物质,具有抗惊厥、抗肿瘤、改善脑缺血等

题型:推断题

问题:

氧氮杂环是新药研制过程中发现的一类重要活性物质,具有抗惊厥、抗肿瘤、改善脑缺血等性质。下面是某研究小组提出的一种氧氮杂环类化合物H的合成路线:

(1)原料A的同分异构体中,含有苯环、且核磁共振氢谱中有4个峰的是______(写出其结构简式)。

(2)③的反应类型是______。原料D中含有的官能团名称是______、______。

(3)反应②的化学方程式是______________________________。

(4)原料B俗名“马来酐”,它是每来酸(顺丁烯二酸:)的酸酐,它可以经下列变化分别得到苹果酸()和聚合物Q:

①半方酸是原料B的同分异构体,分子中含1个环(四元碳环)和1个羟基,但不含 -O-O-键。半方酸的结构简式是____________。

②写出反应I和反应II的化学方程式_____________、____________。

考点:结构简式结构式
题型:推断题

张先生欲购买100平方米的房子,目前市面上一般价格是6000元/平方米,则购买100平方米的房子所需要的费用为60万元。假设按7成按揭,贷款期限20年。

张先生需要支付首期款为()万元。

A.12

B.18

C.42

D.60

题型:推断题

男性,60岁。因"突发呼吸困难2小时"入院。患者于入院前2小时,无明显诱因出现呼吸困难,症状进行性加重;无明显咳嗽、咳痰、咯血,无发热、胸痛等不适。患者既往有支气管哮喘史,不规则用药。入院查体:急性病容,大汗淋漓,烦躁,不能对答,不能平卧,呼吸35/分钟,双肺叩诊呈过清音,双肺呼吸音低,未闻及明显干湿性啰音。心率120/分钟,律齐,未及杂音,SpO85%,血压150/85mmHg。腹部检查(-),双下肢无水肿。

重症型哮喘的判定标准有()(提示:通过检查,胸片示两肺呈过度充气状态;血气分析:pH7.34,PaCO263mmHg(8.3kPa),PaO252mmHg(6.79kPa),SaO283%;心电图示窦速;血常规白细胞11.8×109/L,中性粒细胞0.80,血红蛋白130g/L,血小板150×109/L。)

A.呼气峰值流速(PEF)昼夜变异率>30%

B.端坐呼吸,大汗淋漓

C.pH<7.35,PaCO2>45mmHg,PaO2<60mmHg,SaO2<90%

D.呼吸频率大于30/分钟

E.沉默肺

F.交替脉

题型:推断题

A kitchen that gives step-by-step cooking instructions in French could inspire a revolution in language learning in the UK. By using a new technology, it speaks to you as you prepare a French dish. The kitchen breaks new ground by taking language learning out of the classroom and linking it with an enjoyable and rewarding real-life activity.

The new kitchen is designed to be used in schools, universities and even people’s homes. It could also be an existing kitchen. The first version of the technology was tested in the kitchens of project partner Newcastle University. The kitchen could be available for schools and universities, and for the UK market by the June of 2014.

The Newcastle University team is now working on ways to put it on the market. And the European Union has given money to begin programs in six other languages, including English Italian and Spanish. Finally, versions could be developed for any language cuisine(烹饪法)in the world.

Professor Paul says, “By international standards, the UK students are now poor when it comes to learning languages—a problem that certainly has an economic influence. We believe that developing skills in a country’s language and its cuisine will help change the trend.”

On a computer fixed into the kitchen, the user first selects the French recipe(菜谱)they want to follow. Digital sensors built into dishes, containers and other equipment then communicate with the computer to make sure the right instructions are given at the right time, the user can ask the computer to repeat an instruction, or translate it into English, simply by pressing the touch screen. After cooking, the user can test what they have learned by carrying out a short test on the computer.

All grammar and vocabulary has been carefully selected to make sure that using the kitchen adds to basic proficiency(熟练)in understanding French.

Now three easy-carrying versions of the kitchen are being prepared. They’re to be fixed in Newcastle University and at Institute Francais, a London-based charity devoted to teaching the French language.

小题1:The new kitchen is designed mainly to __________.

A.increase people’s interest in cooking

B.teach people how to cook French dishes

C.offer people a new way to learn languages

D.help cooks learn spoken French in the kitchen小题2:Which of the following is TRUE about the kitchen?

A.It has versions in six languages now.

B.It is already available for sale in the UK.

C.It has received strong support from the EU.

D.It can be used only in schools and university.小题3:When a person is using the kitchen, ___________.

A.it will give him a test on his cooking skills

B.it can translate French into another language

C.the cooking process will stop if he goes wrong

D.he must be careful so as not to make mistakes小题4:What would be the best title for the text?

A.UK students have problems in language learning.

B.New technology helps students learning cooking.

C.An enjoyable and rewarding real-life activity.

D.A Talking Kitchen That Teaches You French.

题型:推断题

体内氧分压最高的部位是( )。

A.动脉

B.静脉血

C.组织液

D.淋巴液

E.肺泡气

题型:推断题

在蒙台梭利教育中,认为儿童的发展有许多敏感期,其中秩序敏感期的建立时间为()。

A.2.5~3.5岁

B.0~2岁

C.5~6岁

D.2~4岁

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