病历摘要:患者男性,75岁,既往有高血压和冠心病病史10余年。因剧烈胸痛并放射到背部

题型:多项选择题 案例分析题

问题:

病历摘要:患者男性,75岁,既往有高血压和冠心病病史10余年。因剧烈胸痛并放射到背部和上腹部2小时,伴出冷汗,呕吐2次。查体:血压180/100mmHg(右),140/80mmHg(左)。心率95次/分,胸骨左缘第3肋间可闻及3/6级舒张期杂音。

此时可排除哪些疾病()提示:患者检查结果显示:血胰淀粉酶正常,心肌酶学检查正常。心电图正常,心脏彩超检查:LV50mm,LA33mm,右房、右室不大。CDFI可见舒张期五彩血流束从主动脉反流至左室流出道,达心尖部。

A.急性心肌梗死

B.心绞痛

C.急性胃炎

D.急性胆囊炎

E.急性胰腺炎

F.急性心包炎

考点:心血管内科(医学高级)医学高级心血管内科仿真试题二(案例分析题)
题型:多项选择题 案例分析题

在不考虑其它因素的前提下,下列选项中与下图曲线DD′反映的变动关系相一致的选项(   )

①X轴为货币发行量,Y轴为商品价格

②X轴为人民币币值,Y轴为外汇汇率

③X轴为社会必要劳动时间,Y轴为单位商品价值量

④X轴为某商品的价格,Y轴为其互补商品的需求量

A.①②

B.③④

C.②④

D.①③

题型:多项选择题 案例分析题

英国的天气:

题型:多项选择题 案例分析题
不定项选择
伽利略在研究力与运动的关系时成功地设计了理想斜面实验,下面关于理想实验的说法中正确的是(   )
A.理想实验是建筑在经验事实基础上的合乎逻辑的科学推理

B.理想实验完全是逻辑思维的结果,不需要经过客观事实的检验

C.理想实验抓住了客观事实的主要因素,忽略了次要因素,从而更加深刻地揭示了自然规律

D.理想实验所提出的设想在现实生活中是不可能出现的,因此得出的结论是没有价值的

题型:多项选择题 案例分析题

CaCO3在高温分解时约有()与焦炭中的碳作用。

A、30%

B、50%

C、70%

D、以上说法都正确

题型:多项选择题 案例分析题

Passage Four

In considering how the American family is changing, the starting point is the traditional family, a form which has developed over time on the basis of a number of assumptions. It is assumed that the family is heterosexual (异性的) institution, with prescriptions about how a man and a woman ought to be joined together and live together. The proper family form is assumed to be the nuclear family, that is, a family composed of a married man and woman and their children. It is assumed that the husband is the head of the family, with ultimate authority over wife and children, and that in their clearly separated roles the husband is the income-earner and the wife is the homemaker and provider of child care. It is assumed that the family lives by itself in its own house or residence.
Observers of family life have suggested that numerous changes are taking place in this traditional American family form. Included are the following general observations about trends.
More men and women seem to be living together before getting married.
Women and men seem to be marrying at a later age.
Married couples are having fewer children.
Unmarried women appear to be having more children.
Wives, even mothers with small children, are increasingly likely to be employed outside the home.
Marriages are more likely to end with divorce.
Single-parent families are more prevalent.
Remarriage is likely to follow divorce rather than widowhood.
Remarriage rates are declining, especially for women.
Some trends, viewed in a long-range historical context, appear not to be trends at all. The age at which men and women normally marry is the same now as it was 100 years ago, though it has fluctuated (变动,波动); a short-range increase in the 1940s and 1950s due to widespread postponement of marriage in war time made it appear that a change had occurred. Other trends appear to be following established patterns rather than representing a sharp break with tradition. Divorce rates have been increasing and families have been having fewer children for well over a century. Single-parent families and stepfamilies were very common in the past, although the reason for them was different. Many marriages formerly are dissolved and followed by remarriage because of the death of a parent or partner. Today single parenthood and remarriage are more likely to be a response to divorce.
Some social scientists see in these changes the breakdown of the family, to the detriment of the society. We take the position that family institutions and systems, like all human systems, are open, take many forms, and are constantly changing.

Which of the following is observed as a trend in the traditional family form

A.Family tends to get smaller.

B.People seem to get married younger.

C.More men tend to return home.

D.Remarriage rates tend to rise.

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