人体内二氧化碳含量最多的部位是[ ] A.肺泡内 B.血液里 C.心脏 D.细胞

题型:选择题

问题:

人体内二氧化碳含量最多的部位是[ ]

A.肺泡内

B.血液里

C.心脏

D.细胞里

考点:肺泡与血液的气体交换
题型:选择题
选词填空。
big, cinemas, exciting, far, like, live, other, some, takes ,train
     Lofton is a little village (村庄) in England. It is not f __1__ from the city of Manchester (曼彻斯特).
 Not many families l __2__ around the village, so the people all know each o __3__. Most of them are
  friendly and helpful.
     Though their homes are in Lofton, many people have jobs in Manchester. S __4__ work in large
 factories there. A few work in shops or offices. Most of these people go to work by t __5__. It usually
 t __6__ about half an hour to go from Lofton to Manchester.
     In the evening a lot of people like watching TV. But if they go to see a film or go to a concert (音乐
 会), they have to go to Manchester, because there are no c __7__  in Lofton.
     Like many other villages near towns or cities, it is clean and quiet. So life in Lofton may not be so
 e __8__ as the life in the b __9__ cities, but it can be just as interesting. That is why people in Lofton
  l __10__  their village.
题型:选择题

We don't have to go far if we need help _____ our homework.[ ]

A. does            

B. doing          

C. do              

D. to do

题型:选择题

根据所提供的图像,最可能的诊断是()

A.胆囊壁钙化

B.胆囊炎

C.正常胆囊

D.胆囊结石

E.以上都不是

题型:选择题

西红柿汁和柠檬汁能使紫色石蕊试液变红的本质原因是                     [ ]

A.都属于果汁   

B.都是液体     

C.都含有碱类物质     

D.都含有H+

题型:选择题

请问雷锋的原名叫什么?

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