男性，36岁，发现无痛性的锁骨上淋巴结肿大2个月，且伴发热、盗汗，近几个月来自感体重

阅读理解。

     It is well-known that the English go out with an umbrella or a raincoat. Why? Because the weather

in Britain often changes quickly. It is not very usual for the same kind of weather to stay long.

     Spring can be rainy or windy, but the weather is getting warmer and you can hope more sunny days.

In fact there can be as much sunshine in spring as in summer. Summer in the best time for visitors to go

to the seaside and other places of interest. The weather can sunny and nice. People often go out to have

a walk or swim. Autumn is a beautiful season, with trees in the woods and parks changing colour. During

autumn it is still nice to be outside, too. In winter, it gets colder. It might snow, especially on high land

and in the north. There are also very high winds in this season.

     January and February are the coldest months of the year, while the warmest are often July and

August. The difference in temperature between winter and summer is not so great in Britain. The average

temperature for winter is about 4.5℃, and for summer about 15.5℃.

1._________, so the English often go out with an umbrella or a raincoat.

A. There's much fog in Britain

B. There's many places of interest in Britain

C. The weather in Britain often changes

D. It often blows in Britain

2. In spring, it's often _________ in Britain.

A. rainy      

B. windy    

C. sunny    

D. all above

3. For the visitors, _________ is the best season of the year in Britain.

A. spring    

B. summer    

C. autumn    

D. winter

4. There's much _________ in Britain in winter.

A. snow and wind          

B. fog and snow  

C. rain and wind            

D. fog and wind

5. Which of the following is true?

A. In Britain, there is little few differences between summer and winter.

B. In Britain, summer is not too hot and winter is not too cold.

C. The weather in Britain is nice all the time.

D. The English are interested in the weather in their country.

为大地添绿，是改善生态环境的重要措施。下图是一个草原生态系统的食物网简图。请据图回答。

（1）该食物网中有           条食物链。

（2）若人们大肆捕杀鸟和鹰，短时期内会导致草原中鼠和昆虫大量繁殖，这说明人类不能随意捕杀某种动物，否则会破坏生态系统的             。

（3）图中的昆虫若为蝗虫，其发育发方式为                。

（4）水稻种子在萌发过程中，为其提供营养的是种子中的              。

消化道穿孔的进一步检查有哪些？

变质铀矿床

以下著名的心理学成果，哪一个不是维果茨基提出来的 ( )

A．认知图式

B．内化学说

C．最近发展区

D．高级心理机能