关于澳大利亚自西向东的地形组合正确的是( ) A.高原一--平原--山地 B.山

题型:选择题

问题:

关于澳大利亚自西向东的地形组合正确的是(  )

A.高原一--平原--山地

B.山地--平原--高原

C.高原--盆地--高原

D.山地--盆地--山地

考点:澳大利亚
题型:选择题

血栓外痔形成的原因是()

A.静脉曲张造成

B.反复炎症使血液瘀滞而成

C.腹压增加使肛门部痔下静脉破裂,血瘀皮下而成

D.腹压增加使肛门部动脉破裂,血瘀皮下而成

E.以上均非

题型:选择题

男性,65岁。腹胀,便秘,解脓血便2个月。查体:腹部平坦,无压痛、反跳痛和肌紧张,左侧中下腹部可扪及一约2cm×3cm大小肿块,较固定。

根据患者情况,首先要做的检查是().

A.纤维结肠镜

B.腹部B超

C.直肠指诊

D.腹部X平片

E.血癌胚抗原测定

题型:选择题

当经济的初始状态高于黄金律水平时,为达到资本的黄金律水平,()。

A.该经济的GDP增加100亿美元

B.该经济GDP增加量等于100亿美元乘以财政支出乘数

C.GDP保持不变,因为税收增加额恰好抵消了政府支出的增加额

D.不能判断GDP增加乘数

题型:选择题

It seems that politicians around the world are thinking about the health of their countries. While in China, Chen Zhu has announced his plans for a universal health service and reform across health services. Gordon Brown, the UK Prime Minister, has also announced he is planning to make some changes in our health service.

The crux of Mr. Brown’ s proposals is related to giving the NHS ( National Health Service) a greater focus on prevention, rather than just curing patients.

He is planning to introduce increased screening for common diseases such as heart disease,strokes and cancer, for example, breast cancer. In Britain there are 200,000 deaths a year from heart attacks and strokes, many of which might have been avoided if the condition had been known about.

Initially, the diagnostic (诊断的) tests will be available for those who are vulnerable, or most likely to have the disease. One example is a plan to offer all men over 65 an ultrasound test to check for problems with the main artery (动脉), a condition which kills 3,000 men a year. The opposition have criticized Mr. Brown’ s proposals, saying that they are just a trick, and Claiming that there is no proper timetable for the changes. They also say that Mr. Brown is reducing the money available for the treatment of certain conditions while putting more money towards testing for them.

The NHS was founded in 1948, and is paid for by taxation. The idea is that the rich pay more towards the health service than the poor. However, in recent years there has been a great increase in the use of private health care, and it’ s much quicker. The NHS waiting lists for operations can be very long, so many people who can afford it choose to pay for medical care themselves.

The underlined word "vulnerable" in the fourth paragraph probably means().

A. sick

B. weak

C. wounded

D. old

题型:选择题

()指测量结果的准确性和有效性的程度。

A.信度

B.效度

C.难度

D.区分度

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