21040017现行的DE值的标准为（）。

A:15≤DE≤20 B:16≤DE≤20 C:17≤DE≤20 D:16≤DE≤22

法国葡萄酒的质量等级可以分为：Vins de Table、Vins de Pays、（）。

A:Vins deTable B:DOCDO（C）Vins de Pays C:Vins de Pays D:VDQS、AOC

若某钻头装了3个等直径do的喷嘴，则其当量喷嘴直径de为（）。

A:de=do B:de=3do C:de=√3do D:de=1/3do

上颌牙列的纵曲线叫作（）

A:Spee曲线 B:补偿曲线 C:横曲线 D:眶耳平面 E:平面

下颌牙列的纵曲线叫作（）

A:Spee曲线 B:补偿曲线 C:横曲线 D:眶耳平面 E:平面

根据管基设计支承角采用中砂回填的厚度应为( )，De为管外径。

A:0.15De B:0.25De C:0.50De D:0.75De

"If it takes you six hours to read this book, somewhere in the world 2,500 people will have died of starvation or of hunger-related illness by the time you (36) ."
Why are so many (37) Susan George affirms with conviction, and with solid (38) , that it is not because there (39) too many passengers on" Spaceship Earth ", not because (40) bad weather or changing climates, but because of food (41) by the rich. (42) the poor go hungry.
The multinational agribusiness corporations, (43) governments with their food "aid" policies and supposedly neural multilateral development organizations (44) responsibility for their (45) .
They all work in corporation (46) local elites, themselves nurtured and protected by the powerful in the (47) world. The United States (48) the way, leads the pack and is (49) imposing its control over the whole planet.
Only those (50) people who can become consumers will eat in the Brave New World being shaped (51) the well-fed. The standard liberal solution to (52) the world-population control or the Green Revolution are just (53) the hungry poor don’t need. All the need is social change, otherwise known as (54) . With that, they could, and would, resolve most of their problems (55) .

42（　）

A:affecting B:changing C:ruling D:feeding

"If it takes you six hours to read this book, somewhere in the world 2,500 people will have died of starvation or of hunger-related illness by the time you (36) ."
Why are so many (37) Susan George affirms with conviction, and with solid (38) , that it is not because there (39) too many passengers on" Spaceship Earth ", not because (40) bad weather or changing climates, but because of food (41) by the rich. (42) the poor go hungry.
The multinational agribusiness corporations, (43) governments with their food "aid" policies and supposedly neural multilateral development organizations (44) responsibility for their (45) .
They all work in corporation (46) local elites, themselves nurtured and protected by the powerful in the (47) world. The United States (48) the way, leads the pack and is (49) imposing its control over the whole planet.
Only those (50) people who can become consumers will eat in the Brave New World being shaped (51) the well-fed. The standard liberal solution to (52) the world-population control or the Green Revolution are just (53) the hungry poor don’t need. All the need is social change, otherwise known as (54) . With that, they could, and would, resolve most of their problems (55) .

51（）

A:affecting B:changing C:ruling D:feeding

Directions: Each blank in the following passage is provided with four choices. Read the whole passage and choose the best answer for each blank. Then mark your answer by blackening the corresponding letter on the Answer Sheet with a single line through the center.

A:changed B:improving C:changing D:improved

? ?When one looks back upon the fifteen hundred years that are the life span of the English language, he should be able to notice a number of significant truths. The history of our language has always been a history of constant change—at times a slow, almost imperceptible change, at other times a violent collision between two languages. Our language has always been a living growing organism; it has never been static. Another significant truth that emerges from such a study is that language at all times has been the possession not of one class or group but of many. At one extreme it has been the property of the common, ignorant folk, who have used it in the daily business of their living, much as they have used their animals or the kitchen pots and pans. At the other extreme it has been the treasure of those who have respected it as an instrument and a sign of civilization, and who have struggled by writing it down to give it some permanence, order, dignity, and if possible, a little beauty.
? ?As we consider our changing language, we should note here two developments that are of special and immediate importance to us. One is that since the time of the Anglo Saxons there has been an almost complete reversal of the different devices for showing the relationship of words in a sentence. Anglo-Saxon (old English) was a language of many inflections. Modern English has few inflections. We must now depend largely on word order and function words to convey the meanings that the older language did by means of changes in the forms of words. Function words, you should understand, are words such as prepositions, conjunctions, and a few others that are used primarily to show relationships among other words. A few inflections, however, have survived. And when some word inflections come into conflict with word order, there may be trouble for the users of the language, as we shall see later when we turn our attention to such maters as WHO or WHOM and ME or I. The second fact we must consider is that as language itself changes, our attitudes toward language forms change also. The eighteenth century, for example, produced from various sources a tendency to fix the language into patterns not always set in and grew, until at the present time there is a strong tendency to restudy and re-evaluate language practices in terms of the ways in which people speak and write.

Which of the following can be best used as the title of the passage?

A:The history of the English language. B:Our changing attitude towards the English language. C:Our changing language. D:Some characteristics of modern English.