问题 解答题

肾小囊中的原尿,其各种成分都与血浆相同.______.(判断对错)

答案

血液是由血浆和血细胞组成的,在形成原尿时,由于肾小球的过滤作用,大分子的蛋白质、血细胞没有被滤过,其他小分子物质过滤到肾小囊腔里形成原尿.原尿在经过肾小管时,经肾小管的重吸收作用,把原尿中的全部葡萄糖、大部分的水和部分无机盐等被肾小管重新吸收回血液,剩下的水和无机盐、尿素等就形成了尿液.原尿与血浆相比不含大分子的蛋白质.

故答案为:×

阅读理解

阅读理解

     As a boy growing up in India,I had longed to travel abroad.I used to listen to the stories my father

would tell me about his stay in Canada and tours to Europe in the 1970s,with great interest.

     My big moment finally came in the summer of 1998 when I was able to accompany my parents to

Europe,where my father was to attend a meeting.We planned to travel to Belgium,Netherlands and

West Germany.

     I have vivid memories even today of going to Mumbai airport at night all excited about finally going

abroad.I had heard several great things about Lufthansa till then but now I finally got to experience them

first hand,during the flight to Frankfurt.We flew business class and even today I can remember the

excellent service by the Lufthansa crew.The flight was really smooth and thoroughly enjoyable,even for

someone like me,who is otherwise scared of flying.

     After spending almost two weeks in Europe,we took the Lufthansa airport express from Dusseldorf

to Frankfurt airport,for our return flight.What a journey that was! All along the Rhine (莱茵河),it was

simply an unforgettable experience.I was in a sombre mood on the flight back to Mumbai as it marked

the end of a wonderful vacation,but the Lufthansa crew members were able to change it into a most

enjoyable experience yet again,with the quality of their service.

     Being the first airline to take me overseas,Lufthansa will always hold a special place in my heart.Even

today,I continue to enjoy flights on Lufthansa and simply cannot dream of choosing any other airline.

Flying,in general,for me,has always been an ordeal (terrible and painful experience). Flying on Lufthansa,

however,is something I always have and always will look forward to.

1. Which country does the author live in now?

A. India.  

B. Canada.

C. Belgium.  

D. Germany.

2. What made the author so interested in traveling abroad?

A. Growing up in India.

B. Once staying in Canada.

C. Once traveling to Canada with his father.

D. His father's stories about his traveling experiences.

3. Which of the following is TRUE about the author's trip to Europe in 1998?

A. The author traveled with one of his parents.

B. Both their going and return are by air.

C. They traveled in spring that year.

D. They stayed in Europe for nearly two months.

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