下列关于外码的说法中不正确的是( )。A.外码是某个关系的主码 B.外码可以作为两

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问题:

下列关于外码的说法中不正确的是( )。

A.外码是某个关系的主码

B.外码可以作为两个关系的联系手段

C.外码只能是一个关系的主码

D.外码不是任何关系的主码

考点:计算机等级考试数据库技术三级数据库技术笔试21
题型:单项选择题

下图是某种化肥的包装袋上的部分说明,这种化肥属于 

[ ]

A.氮肥

B.磷肥

C.钾肥

D.复合肥料

题型:单项选择题

病历摘要:男性患者,32岁,2月前开始尿量减少,浮肿,伴头痛、头晕。近日来,呼吸急促,严重时被迫体位。

入院体检:T37℃,心率104次/min,呼吸28次/min,BP28/16kPa,慢性病容,意识清,烦躁不安,面色苍白,颈静脉无怒张,两肺底闻及中小湿啰音,心界向左下扩大,心率104次/min,律齐,心尖区二级收缩期吹风样杂音。

实验室检查:尿蛋白(+),红细胞0~4个/高倍视野。血肌酐750μmol/L,血钾5.1mol/L,血钙2.5mmol/L,二氧化碳结合力15mmol/L。

应如何配合救治该患者?()

A.置患者两腿下垂坐位

B.高流量氧气吸入

C.给予心理支持

D.进行心电等监护

E.进行血压监护

F.进行呼吸监护,按医嘱及时准确给药

题型:单项选择题

肺癌肺外综合征最常见的是()

A.肥大性肺性骨关节病

B.肌病和神经综合征

C.高钙血症

D.Cushing综合征

E.周围神经病变

题型:单项选择题

对原有修复体的检查包括

A.原义齿与口腔组织的密合情况
B.关系
C.外形是否合适
D.义齿行使功能的效率
E.以上都对

题型:单项选择题

Attempts to understand the relationship between social behavior and health have their origin in history. Dubos (1969) suggested that primitive humans were closer to the animals (1) they, too, relied’upon their instincts to stay healthy. Yet some primitive humans (2) a cause and effect relationship between doing certain things and alleviating (3) of a disease or (4) the condition of a wound. (5) there was so much that primitive humans did not (6) the functioning of the body, magic became an integral component ofthe beliefs about the causes and cures of heath (7) Therefore it is not (8) that early humans thought that illness was caused (9) evil spirit. Primitive medicines made from vegetables or animals were invariably used in combination with some form of ritual to (10) harmful spirit from a diseased body.

One of the. earliest (11) in the Western world to formulate principles of health care based upon rational thought and (12) of supernatural phenomena is found in the work of the Greek physician Hippocrates. The writing (13) to him has provided a number of principles underiying modern medical practice. One of his most famous (14) , the Hippocratic Oath, is the foundation of contemporary medical ethics.

Hippocrates also argued that medical knowledge should be derived from a (15) of the natural science and the logic of cause and effect relationships. In this (16) thesis, On Air, Water, and Places, Hippocrates pointed out that human well-being is (17) by the totality of environmental (18) : living habits or lifestyle, climate, geography of the land, and the quality of air, and food. (19) enough, concerns about our health and the quality of air, water, and places are (20) very much written in twentieth century.

14()

A.attractions

B.subscriptions

C.contributions

D.functions

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