属于舌下区境界的是() A.颏舌骨肌之上 B.口底黏膜之上 C.下颌舌骨肌之上 D.

题型:单项选择题

问题:

属于舌下区境界的是()

A.颏舌骨肌之上

B.口底黏膜之上

C.下颌舌骨肌之上

D.前界为颏结节

E.后以舌骨体为界

考点:广西口腔住院医师规范化培训口腔解剖生理学口腔解剖生理学题库
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排便后,有鲜血滴落的疾病多为()

A.上消化道出血

B.直肠息肉

C.结肠癌

D.痔疮

E.直肠癌

题型:单项选择题

半衰期是46.3小时的核素是()。

A.89Sr

B.153Sm-EDTMP

C.186Re-HEDP

D.32P

E.90Y

题型:单项选择题

下列肺切除术后影像表现,哪项不对()

A.术后24小时内,纵隔位置应居中位

B.患侧胸腔气液面逐渐升高

C.胸腔内气体完全吸收需数周时间

D.健肺胸片正常,也不能除外肺不张

E.患侧胸腔气液面逐渐下降

题型:单项选择题

In 1929 John D. Rockefeller decided it was time to sell shares when even a shoe-shine boy offered him a share tip. During the past week The Economist’s economics editor has been advised by a taxi driver, a plumber and a hairdresser that "you can’t go wrong" investing in housing-the more you own the better. Is this a sign that it is time to get out At the very least, as house prices around the world climb to ever loftier heights, and more and more people jump on to the buy-to-let ladder, it is time to expose some of the fallacies regularly trotted out by so many self-appointed housing experts.

One common error is that house prices must continue to rise because of a limited supply of land. For instance, it is argued that "house prices will always rise in London because lots of people want to live here". But this confuses the level of prices with their rate of change. Home prices are bound to be higher in big cities because of land scarcity, but this does not guarantee that urban house prices will keep rising indefinitely-just look at Tokyo’s huge price-drops since 1990. And, though it is true that a fixed supply of homes may push up house prices if the population is rising, this would imply a steady rise in prices, not the 20% annual jumps of recent years.

A second flawed argument is that low interest rates make buying a home cheaper, and so push up demand and prices. Lower interest rates may have allowed some people, who otherwise could not have afforded a mortgage, to buy a home. But many borrowers who think mortgages are cheaper are suffering from money illusion.

Interest rates are not very low in real, inflation-adjusted terms. Initial interest payments may seem low in relation to income, but because inflation is also low it will not erode the real burden of debt as swiftly as it once did. So in later years mortgage payments will be much larger in real terms. To argue that low nominal interest rates make buying a home cheaper is like arguing that a car loan paid off over four years is cheaper than one repaid over two years.

Fallacy number three is a favourite claim of Alan Greenspan, chairman of America’s Federal Reserve. This is that price bubbles are less likely in housing than in the stockmarket because higher transaction costs discourage speculation. In fact, several studies have shown that both in theory and in practice bubbles are more likely in housing than in shares. A study by the IMF finds that a sharp rise in house prices is far more likely to be followed by a bust than is a share-price boom.

To which of the following is author likely to agree()

A. It is time to illustrate some popular fallacies about buying a home

B. Some popular flawed arguments about buying a home should be made known to the public for the time being

C. People should be punctual in business dealings of shares and housing

D. Alan Greenspan’s claim can hold water with respect to fallacy member three

题型:单项选择题

8岁女孩,半个月前有发热,体温38.6~39.8℃,伴稀水便7~8次/日,1周后自愈。近2天感疲乏、头晕,晕厥1次。入院查面色苍白,脉缓而规则,血压65/40mmHg,心界扩大,心率50次/分,有大炮音。

(假设信息)经心电图检查示室性期前收缩,下列心电图表现不符合室性期前收缩的是()

A.QRS波提前,形态异常,ORS>0.10秒,T波与主波方向一致

B.QRS波前无P′波

C.代偿间歇完全

D.有时在同导联出现,形态不一,配对时间不等

E.QRS波提前,形态异常,QRS>0.10秒,T波与主波方向相反

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