股动脉()。A、是髂总动脉的直接延续 B、经过股三角 C、在收肌管内移行为腘动脉 D、分支

题型:单项选择题

问题:

股动脉()。

A、是髂总动脉的直接延续

B、经过股三角

C、在收肌管内移行为腘动脉

D、分支仅分布于大腿前群肌

E、分出胫前、后动脉

考点:人体解剖学心与动脉心与动脉题库
题型:单项选择题

在消化系统内蛋白质最终被分解成

A.纤维素

B.葡萄糖

C.氨基酸

D.甘油

题型:单项选择题

由sss定时器构成的多谐振荡器如图3.7-17所示,已知R1=33kΩ,R2=27kΩ,C=0.083μF,。图3.7-17所示电路的振荡频率f0约为()Hz。

A.286

B.200

C.127

D.140

题型:单项选择题

     

第三部分:阅读理解(共20小题,共40分)

第一节(共15题, 每小题2分,满分30分)

阅读下列短文,从每题所给的四个选项(A,B,C和D)中,选出最佳选项。                              

A

Most people know that a wedding ring is symbolic of the bond of love and commitment between two people.But not everyone knows about the history behind this small yet powerful symbol.The history of the wedding ring goes back not just hundreds but thousands of years.No other currently practiced wedding tradition has been around as long.

The Egyptians were the first recorded civilization to use the wedding ring.In Egyptian hieroglyphics(象形文字) a circle represented eternity.Once a woman accepted the ring she became the “property” of the person who gave it to her and she was in a sense “his.” The first wedding ring could have been made of braided grass or hay (which would have been changed often), ivory, bone, or leather.Eventually, metal was used, but the first wedding bands were crude(未加工的) and rough.However, the sentiment remained the same-eternal commitment and love.

The Egyptians wore the wedding ring on the left hand because it was believed that a vein in the left hand went straight to the heart.This tradition is still commonly practiced today in most parts of the world largely for practical purposes (most people are right handed.) It is worn on the fourth finger of the left hand.But there are some countries and groups which do not follow this tradition.In the Jewish faith, the wedding ring is put on the index finger.Roman Catholics traditionally wore their wedding band on the right hand, and in many countries and regions in Europe some people still follow this tradition.

It is interesting to note that in the long history of the wedding ring that it is only in the last century that men have begun to wear them.However, now both men and women show their love and commitment by exchanging rings on their wedding day.

Once you begin shopping for rings you may be amazed by the choices that await you.There are several different types of metals: traditional gold, white gold, platinum, and titanium.You can have an inscription put on the inside of the band if you like.Some people are even choosing a tattoo band.The styles vary from a simple, yet elegant band to an elaborate ring covered with jewels.If you do not buy the wedding and engagement rings as a set you will want to be sure the styles are compatible.Choose carefully because this choice will need to stand the test of eternity.

56.What’s the best title for this passage?

A.History of rings                      B.Interesting facts about rings 

C.Different beliefs about rings               D.The meaning of the rings.

57.What may the word “eternity” in paragraph 2 probably mean?

A.Elegance     B.Marriage     C.Wedding      D.Foreverness

58.Which is NOT true according to the passage?

A.The meaning of the rings remained unchanged.

B.One should be careful of choosing a ring in a shop from different kinds.

C.Jewish are so faithful to their beliefs to wear rings on the fourth finger.

D.Now most people in the world still follow Roman Catholics traditionally.

59.What can we infer from the passage?

A.Men were looked upon by women for thousands years.

B.Only women have the right to make themselves beautiful.

C.women wore rings thousands of years earlier than men.

D.You can have an inscription put on the inside the band.

题型:单项选择题

汽车的机动性是指车辆在最小面积内()的能力。

A.转弯

B.转向

C.掉头

D.以上全都是

题型:单项选择题

关于人体内三大营养物质代谢。图中A—D表示物质,①—⑨表示生理过程,请据图回答下列问题。

人体一般在()情况下进行过程⑨⑤,获得能量;机体供氧不足时,物质A能氧化分解产生()。

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