读我国西电东输略图,回答问题。 (1)我国常规能源丰富,但分布不均。煤炭主要分布

题型:综合

问题:

读我国西电东输略图,回答问题。

(1)我国常规能源丰富,但分布不均。煤炭主要分布在_____________地区,水能90%的可开发装机容

    量集中分布在_____________、中南、西北地区。

(2)A线工程是将内蒙古、_____________、陕西等省区的火电送到_____________地区;

    B线工程是将_____________地区的_____________(能源名称)输往沪宁杭地区;

    C线工程是将_____________流域的水电资源输往_____________地区。

(3)图中三线目的地大量输入能源的共同原因。

    _________________________________________________________________________________________

    _________________________________________________________________________________________

(4)A、B、C工程的实施,对能源的输入地和能源的输出地的积极意义。

    _________________________________________________________________________________________

    _________________________________________________________________________________________

    _________________________________________________________________________________________

考点:资源的跨流域调配
题型:综合

把二氧化硫通入紫色石蕊试液中,可以观察到的现象是

A.先变蓝后变红

B.先变红后褪色

C.先变红后变紫

D.只变红

题型:综合

阅读理解。

     The Queen's English is now sounding less upper-class, a scientific study of the Queen's Christmas

broadcasts had found. Researchers have studied each of her messages to the Commonwealth countries

since 1952 to find out the change in her pronunciation from the noble Upper Received to the Standard

Received.

     Jonathan Harrington, a professor at Germany's University of Munich, wanted to discover whether

accent (口音) changers recorded over the past half century would take place within one person. "As far

as I know, there just is nobody else for whom there is this sort of broadcast records," he said.

     He said the noble way of pronouncing vowels (元音) had gradually lost ground as the noble upper-

class accent over the past years. "Her accent sounds slightly less noble than it did 50 years ago. But these

are very, very small and slow changes that we don't notice from year to year."

     "We may be able to relate it to changes in the social classes," he told The Daily Telegraph, a British

newspaper. "In 1952 she would have been hears saying 'thet men in the bleck het'. Now it would be 'that

man in the black hat'. And 'hame' rather than 'home'. In the 1950s she would have been 'lorst', but by the

1970s 'lost'."

     The Queen's broadcast is a personal message to the Commonwealth countries. Each Christmas, the

10-minute broadcast is put on TV at 3 pm in Britain as many families are recovering from their traditional

turkey lunch. (传统火鸡午餐).

     The results were published (发表) in the Journal of Phonetics.

1. The Queen's broadcasts were chosen for the study mainly because _____.

A. she has been Queen for many years

B. she has a less upper-class accent now

C. her speeches are familiar to many people

D. her speeches have been recorded for 50 years

2. Which of the following is an example of a less noble accent in English? 

A. "duaty"

B. "citee"

C. "hame"

D. "lorst"

3. We may infer from the text that the Journal of Phonetics is a magazine on _____.

A. speech sounds

B. Christmas customs

C. TV broadcasting

D. personal messages

4. What is the text mainly about?

A. The relationship between accents and social classes.

B. The Queen's Christmas speeches on TV.

C. The changes in a person's accent.

D. The recent development of the English language.

题型:综合

下列说法正确的是[ ]

A.1mol 硫酸与1mol Ba(OH)2完全中和所放出的热量为中和热

B.在25℃.101kPa下,1mol硫和2mol硫燃烧热相等

C.CO是不稳定的氧化物,它能继续和氧气反应生成稳定的CO2,所以CO的燃烧反应一定是吸热反应

D.101kPa时,1mol碳燃烧所放出的热量为碳的燃烧热

题型:综合

原发性醛固酮增多症最多见的病因是()。

A.醛固酮瘤

B.醛固酮癌

C.特发性醛固酮增多症

D.糖皮质激素可治性醛固酮增多症

E.迷走的分泌醛固酮组织

题型:综合

()是我国历史上建立的第一个宫调理论体系。

更多题库