十二指肠溃疡的发病主要是因为A.胃酸、胃蛋白酶等侵袭因素增强 B.粘膜屏障减弱 C.

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问题:

十二指肠溃疡的发病主要是因为

A.胃酸、胃蛋白酶等侵袭因素增强

B.粘膜屏障减弱

C.粘膜血流量减低

D.细胞更新能力减弱

E.表皮生长因子减少

考点:普通考研西医综合全国硕士研究生入学统一考试西医综合真题2003年
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Many people from overseas believe that it rains a lot in London, but in fact its rainfall is similar to that in other European cities. Rainfall is evenly (平均地) spread during the year, so  even in summer a visitor is likely to experience some     weather. In spring and autumn there are likely to be some heavy showers, often followed by sunshine. In winter the rain is usually lighter but may    for longer.

In the summer, if there are a few days of particularly hot weather, these are often

   by a thunderstorm. It is because the weather can change very quickly that many British people carry a(an)umbrella with them throughout the year, even when it appears to be a

   day.

The UK’s weather is strongly influenced by the sea which surrounds Britain and Ireland. The sea warms up and       more slowly than land, keeping winters relatively warm but also making the summers cooler.

You may be wise to bring      warm to wear in the evenings even during the summer months. Very hot days (over 30 C) are not common, so air conditioning is not as widespread as in warmer countries.

During the winter people will often wear several different layers (层) of clothing. This allows them to keep warm when walking outside, but to     comfortable when inside a heated building.

小题1:A. dry               B. wet                 C. hot  

小题2:A. last               B. break                  C. have    

小题3:A. received           B. accepted            C. followed  

小题4:A. fine               B. bad                 C. rainy      

小题5:A. takes off          B. rises up            C. cools down` 

小题6:A. something          B. anything            C. nothing    

小题7:A. realize            B. remind              C. remain     

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人身保险商品是一种特殊性商品,具有一定的射悻性,因此,投保人购买保险商品从总体上讲是等价交换,从个体上讲是非等价交换。( )

A.对

B.错

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百部的主要功效是:()

A.化痰

B.止咳

C.平喘

D.清肺

E.泻肺

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行政机关只能成为行政主体,而不可能成为行政相对人。 ( )

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确定和调整最低工资应考虑劳动者本人和他所赡养人口的最低生活费用。()

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