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问题 单项选择题 A1型题

女，25岁，发热1周，体温38.5℃～39℃，检查皮肤散在紫癜。颈部及腋下可触及0.5～1.5cm大小淋巴结5～6个，脾肋下3cm，血红蛋白85g/L，白细胞10×109/L，血小板25×109/L，此病人在发热、头痛、呕吐第2日做脑脊液检查，最可能的发现为（）

A.脑脊液中性粒细胞增高

B.细菌培养阳性

C.脑脊液发现结核杆菌

D.脑脊液蛋白量显著增高、糖定量减低

E.脑脊液白血病细胞增多

答案

参考答案：D

解析：中枢神经系统白血病脑脊液压力升高，白细胞数增加，蛋白质增多，而糖定量减少。正常情况下脑脊液中没有白血病细胞，在白血病患者中如果能从脑脊液中检出白血病细胞即可诊断为中枢神经系统白血病，但脑脊液中的白血病细胞检出率并不高。

填空题

2008年11月5日，国务院常务会议部署了进一步扩大内需、促进经济增长的十项措施，其中加快铁路建设是一项重要举措．如图所示，是铁路建设中使用道钉撬撬道钉的示意图．它是一个______杠杆，当道钉对道钉撬的阻力F2是4000N时，要把道钉撬动，需要的动力F1为______N（不计道钉撬重）．请在图中画出撬动道钉所需最小动力F1的示意图．
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问答题

Green space facilities are contributing to an important extent to the quality of the urban environment. Fortunately it is no longer necessary that every lecture or every book about this subject has to start with the proof of this idea. (46) At present it is generally accepted, although more as a self-evident statement than on the basis of a closely-reasoned scientific proof. The recognition of the importance of green space in the urban environment is a first step on the right way. (47) This does not mean, however, that sufficient details are known about the functions of green space in towns and about the way in which the inhabitants are using these spaces. As to this rather complex subject I shall, within the scope of this lecture, enter into one aspect only, namely the recreative function of green space facilities.
(48) The theoretical separation of living, working, traffic and recreation, which for many years has been used in town-and-country planning, has in my opinion resulted in disproportionate attention for forms of recreation far from home, whereas there has been relatively little attention for improvement of recreative possibilities in the direct neighborhood of the home. (49) We have come to the conclusion that this is not right, because an important part of the time which we do not pass in sleeping or working is used for activities at and around home. So it is obvious that recreation in the open air has to begin at the front door.
(50) The urban environment has to offer as many recreation activities as possible, and the design of these has to be such that more obligatory activities can also have a recreative aspect. The very best standard of living is nothing if it is not possible to take a pleasant walk in the district, if the children cannot be allowed to play in the streets, because the risks of traffic are too great, if during shopping you can nowhere find a spot for enjoying for a moment the nice weather, in short, if you only feel yourself at home after the front door is shut.
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