如图所示是两种物质熔化和凝固的图线．由图线可知：属于晶体物质的是 ；处于熔化过程

定胰岛B细胞功能的主要目的是（）。

A.诊断糖尿病

B.1、2型糖尿病分型

C.除外继发性糖尿病

D.指导治疗

E.诊断营养不良相关性糖尿病

阅读理解

     As the English language has changed at a fast speed in this century, so has the use of the English

language.

     After the British Broadcasting Corporation (BBC) was founded in 1927, the particular style of

speech of the BBC announcers was recognized as Standard English or Received Pronunciation (RP)

English. Now, most people still consider that the pronunciation and delivery of BBC announcers in the

clearest and most understandable spoken English.

     English has had a strong association with class and social status. However, since the Second World

War there has been a considerable change of attitude towards speech snobbery (势利), and hallmarks

(标准) of class distinction such as styles of speech have been gradually thrown away, especially by the

young generation.

     As the need has arisen, new words have been invented or found from other languages and integrated

into English. Similarly, old words and expressions have been discarded (丢弃) as their usefulness has

reduced or the fashions have passed. This also happens to styles and modes of speech which became

fashionable at a particular time and in specific circumstances.

     By the end of the 1960s it became apparent that it was not necessary to speak Standard English or

even correct grammar to become popular, successful and rich. The fashionable speech of the day was

no longer the feature of a privileged class but rather an expression of classlessness.

     The greatest single influence of the shaping of the English language in modern times is the American

English. Over the last 25 years the English used by many people, particularly by those in the media,

advertising and show business, has become more and more mid-Atlantic in style, delivery and accent.

     In the 1970s, fashion favoured stressless pronunciation and a language full of jargon, slang and "in"

words, much of it quite incomprehensible to the outside world. What is considered modern and

fashionable in Britain today is often not the kind of English taught in schools and colleges.

1. According to the author, there was a trend in the U.S. for the young people _______.

A. to speak Standard English

B. to speak English without class distinction

C. to speak English with class distinction

D. to speak English with grammar mistakes

2.The word "mid-Atlantic" in the passage (Para. 6) probable means _________.

A. American and European

B. American and British

C. the Atlantic Ocean

D. in the middle of the Atlantic Ocean

3. It can be concluded from the passage that ______.

A. Standard English is taught in school and colleges

B. the young people are defiant because they refuse to speak standard English

C. the English language is influenced by American English in the last 25 years

D. there has been a great change in the English language in this century

山东省某市市委在城市建设过程中，把城市建设远景规划向群众展示，公开征求意见。还邀请人大代表、政协委员对城市规划提建议，并将修订后的规划提交市人大审议、表决通过后再实施。该市市委坚持立党为公、执政为民，在保持经济又好又快发展的同时，进一步采取一系列措施，努力解决就业、教育、医疗、住房等民生问题，让老百姓共享改革发展成果。

上述材料是如何体现中 * * 党的执政方式的？

________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

下列哪种毒物中毒时发病最快（）

A.乐果

B.敌敌畏

C.敌百虫

D.对硫磷（1605）

E.巴比妥类药物

数据流覆盖关注的是程序中某个变量从其声明、赋值到引用的变化情况，它是下列哪一种覆盖的变种______。

A．语句覆盖

B．控制覆盖

C．分支覆盖

D．路径覆盖