Text 1The destruction of our natural resources and contamination of our food supply continue to occur largely because of the extreme difficulty in affixing legal responsibility on those who continue to treat our environment with reckless abandon. Attempts to prevent pollution by legislation, economic incentives and friendly persuasion have been met by law-suits, personal and industrial denial and long delays not only in accepting responsibility, but more importantly, in doing something about it.It seems that only when, government decides it can afford tax incentives or production sacrifices is there any initiative for change. Where is industry’ s and our recognition that protecting mankind’ s great treasure is the single most important responsibility If ever there will be time for environmental health professionals to come to the frontlines and provide leadership to solve environmental problems, that time is now.We are being asked, in fact, the public is demanding that we take positive action. It is our responsibility as professionals in environ mental health to make the difference. Yes, the ecologists, the environmental activists and the conservationists serve to communicate, stimulate thinking and promote behavioral change. However, it is those of us who are paid to make the decisions to develop, improve and enforce environmental standards, I submit, who must lead the charge.We must recognize that environmental health issues do not stop at city limits, county lines, state or even federal boundaries. We can no longer afford to the tunnel-visioned in our approach. We must visualize issues from every perspective to make the objective decisions. We must express our views clearly to prevent media distortion and public confusion. I believe we have a three-part mission for the present. First, we must continue to press for improvements m the quality of life that people can make for themselves. Second, we must investigate and understand the link between environment and health. Third, we must be able to communicate technical information in a form that citizens can understand. If we can accomplish these three goals in this decade, maybe we can finally stop environmental degradation, and not merely hold it back. We will then be able to spend pollution dollars truly on prevention rather than on bandages. Which of the following, according to the author, should play the leading role in the solution of environmental problems()
A. Legislation and government intervention.
B. The industry' s understanding and support.
C. The efforts of environmental health professional.
D. The cooperation of ecologists, environmental activists and conservationists.
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有关汤氏位摄影,以下错误的是
A. 患者仰卧,正中矢状面垂直于台面
B. 下颌内收,听眦线垂直于台面
C. 胶片上缘与头顶平齐,下缘低于下颌骨
D. 中心线向足侧倾斜15。
E. 中心线对准眉间上方约10cm处射入,从枕外隆凸下方射出
The first two stages in the development of civilized man were probably the invention of primitive weapons and the discovery of fire, al though nobody knows exactly when acquired the use of (1) .The (2) of language is also obscure. No doubt it began very gradually. Animals have a few cries that serve (3) signals, (4) even the highest apes have not been found able to pronounce words (5) with the most intensive professional instruction. The superior brain of man i, apparently (6) for the mastering of speech. When man became sufficiently intelligent, we must suppose that he (7) the number of cries for different purposes. It was a great day (8) he discovered that speed could be used for narrative. There are those who think that (9) picture language preceded oral language. A man (10) a picture on the wall of his cave to show (11) direction he had gone, or (12) prey he hoped to catch. Probably-picture language and oral language developed side by side. I am inclined to think that language (13) the most important single factor in the development of man. Two important stages came not (14) before the dawn of written history. The first was the domestication of animals; the second was agriculture. Agriculture was (15) in human progress to which subsequently there was nothing comparable (16) our own machine age. Agriculture made possible (17) immense increase in the number of the human species in the regions where it could be successfully practiced. (18) were, at first, only those in which nature fertilized the soil (19) each harvest. Agriculture met with violent resistance from the pastoral nomads, but the agricultural way of life prevailed in the end (20) the physical comforts it provided. 9()
A. a stage
B. a step
C. a development
D. a way
关于头颅摄影注意事项的叙述,错误的是
A. 颅骨切线位可不用滤线器
B. 中心线倾斜角度必须准确
C. 颅底骨折患者常取颌顶位摄取颅底位
D. 可取平静呼吸下屏气曝光
E. 焦一片距一般为100cm
Text 2Some people would say that the Englishman’ s home is no longer his castle; that it has become his workshop. This is partly because the average Englishman is keen on working with his hands and partly because he feels, for one reason or another, that he must do for himself many household jobs for which, some years ago, he would have hired professional help. The main reason for this is a financial one: the high cost of labor has meant that builders’ and decorators’ costs have reached a level which makes them so high that house - proud English people of modest means hang back. So, if they wish to keep their houses looking bright and smart, they have to deal with some of the repairs and decorating themselves. As a result, there has grown up in the post - war years what is sometimes referred to as the ’ Do - It - Yourself Movement’.The ’Do - It - Yourself Movement’ began with home decorating but has since spread into a much wider field. Nowadays there seem to be very few things that cannot be made by the ’ do - it - yourself’ method. A number of magazines and handbooks exist to show hopeful handymen of all ages just how easy it is to build anything from a coffee table to a fifteen -foot(4.5 meters) sailing boat. All you need, it seems, is a hammer and a few nails. You follow the simple instructions step - by - step and, before you know where you are, the finished article stands before you, complete in every. detail.Unfortunately, alas, it is not always quite as simple as it sounds ! Many a ’ do - it - yourselfer’ has found to his cost that one cannot learn a skilled craftsman’ s job overnight. How quickly one realizes, when doing it oneself, that a job which takes the skilled man an hour or so to complete takes the amateur five or six at least. And then there is the question of tools. The first thing the amateur learns is that he must have the right tools for the job. Bui tools cost money. There is also the wear and tear on the nerves. It is not surprising then that many people have come to the conclusion that the expense of paying professionals to do the work is, in the long run, more economical than ’ doing it oneself’. As an amateur, you' ll have to()first.
A. follow the instructions in magazines
B. get the right tools
C. prepare fully psychologically
D. ask a skilled craftsman' s advice