B. Lesen Sie die folgenden überschriften

题型:单项选择题

问题:

B. Lesen Sie die folgenden überschriften und Texte. Ordnen Sie dann den Texten (23-24) die passende überschrift (a-d) zu. (2P)überschriften a.Experiment in Florida: Schlank in zwlf Stundenb.Ernherungstipps kostenlos per Telefon c.Schnell essen macht dickd.Wissenschftler warnen: Immer mehr dicke Mdchen in sterreich!

übergewicht knnte erblich durch Krankheiten, aber auch durch falsche Essgewohnheiten bedingt sein. Psychiater der Universitt Florida haben jetzt das schnelle Essen als mgliche Ursache für Fettleibigkeit entdeckt. Die Wissenschaftler untersuchten, was genau im Hirn bei der Nahrungsaufnahme passiert. Zu diesem Zweck bekamen Testpersonen nach einer zwlfstündigen Fastenzeit eine Zuckerlsung zu trinken. Zuerst zeigte sich verstrkte Gehirnttigkeit, ausgelst durch Schlucken, Geruch und Geschmack. Dann, zehn Minuten spter, signalisierte das Gehirn, dass der Krper genug habe. Bei Menschen, die zu schnell essen, ist dieses Signal stark verzgert. Daher dürfte das Sprichwort Iss langsam, Kind!“ tatschlich eine Weisheit sein. (Aus einer deutschen Zeitung)

考点:小语种德语2012年德语专业四级考试(暂缺部分答案)
题型:单项选择题

利用全等三角形测距离,其结论依据是(     )

题型:单项选择题

女性,40岁。持续高热伴右上腹痛4天,加重伴巩膜黄染3天入院。既往有胆囊炎病史。查体:呼吸急促30次/分,血压75/40mmHg。高热面容,神志清,巩膜黄染。心率124次/分,律齐,右上腹压痛明显。化验:WBC21乘以十的九次方/L,中性粒细胞90%。

引起本病的病原菌首先考虑是()

A.金黄色葡萄球菌

B.表皮葡萄球菌

C.大肠杆菌

D.铜氯假单胞菌

E.溶血性链球菌

题型:单项选择题

探索温度对酶活性影响的实验,需要进行如下步骤:

①取3支试管,编号并注入2mL淀粉溶液;②向各试管注入1mL新鲜淀粉酶溶液;③向3支试管中各滴一滴碘液;④将3支试管分别放入60℃的热水、沸水和冰块中维持5min;⑤观察实验现象.最合理的实验顺序应为(  )

A.①②③④⑤

B.①③②④⑤

C.①③④②⑤

D.①②④③⑤

题型:单项选择题

Have you dreamed of traveling to cool places, meeting different people, and maybe picking up a language or two? No matter which country you live in, you can fly over the world’s highest waterfalls in Venezuela, study in France or take dancing lessons in Ghana. Besides the excitement of traveling, there is another reason to study abroad. "Obviously, I learned the language and am now fluent, but perhaps what’s more important was how much I learned about cultures, people, and myself." said Andrew, who studied in France.

Christina studied in Caracas, Venezuela, a city of 10 million people and a huge change from her hometown of 35,000! Christina said she learned how to better speak for herself and her beliefs and to express herself in another language. What could make you more confident than that?

Living away from home can also help you become adapted to the transition (过渡) to college and adulthood. Matthew said that he returned from studying in Australia with confidence, and a real interest in international affairs. "After having gone abroad in high school, I found the transition to college was a breeze — moving 560 miles from home didn’t seem difficult at all after having lived thousands of miles away. "

Speaking of college, improving your language skills might help you get into ideal colleges and even land future jobs. Colleges and employers know that studying abroad provides leadership skills in a world that needs much communication. Most of all, it’s fun! You won’t suffer from the general boredom (单调) while you’re studying in a different learning environment.

小题1:What do we know about Andrew?

A.He once flew over the world’s highest waterfalls.

B.He took dancing lessons in Ghana.

C.He learned about cultures in Caracas, Venezuela.

D.He studied in France.小题2:According to Christina, studying abroad enables people to ________.

A.get along with people around

B.have confidence in themselves

C.get used to a different life

D.know about different cultures小题3:By saying "I found the transition to college was a breeze", the author means it is _______ to adapt to college life.

A.interesting

B.difficult

C.easy

D.disappointing 小题4:From the last paragraph, the greatest thing you can get by studying abroad is to _______.

A.enjoy the excitement of traveling

B.pick up a new language

C.enter the university you dreamed of

D.make your life full of pleasure小题5:What does the text mainly talk about?

A.The advantages of studying abroad.

B.What to prepare to study abroad.

C.The experiences of studying abroad.

D.Different opinions on studying abroad.

题型:单项选择题

在一体积固定的密闭容器中,某化学反应2A(g) B(g)+D(g)在四种不同条件下进行,B、D起始浓度为0。反应物A的浓度(mol/L)随反应时间(min)的变化情况如下表:

实验

序号

                 时 间

浓度 

温度

0102030405060
1800℃1.00.800.670.570.500.500.50
2800℃c20.600.500.500.500.500.50
3800℃c30.920.750.630.600.600.60
4820℃1.00.400.250.200.200.200.20
根据上述数据,完成下列填空:

(1)在实验1,反应在10至20分钟时间内,用A表示表示该反应的平均速率

_       mol/(L . min)

(2)在实验2,A的初始浓度c2=____________mol/L,反应经20分钟就达到平衡,可推测实验2中还隐含的条件是_______________________________。

(3)设实验3的反应速率为v3,实验1的反应速率为v1,则v3_______v1

(填>、=、<),且c3_______1.0 mol/L(填>、=、<)。

(4)比较实验4和实验1,可推测该反应是________反应(选填吸热、放热)。

理由是___________________________________________________________

(5)根据以上实验请指出要加快该反应可采取什么样的方法(列举方法最少2种)

_________  __________________________________________________

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