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问题 单项选择题

一Rh溶血病患儿，其血型是0、CcDEe，其母血型为A、ccdee，如需交换输血。下列哪一种血型最合适（）

A.O、CcDEe

B.O、CCDEE

C.A、ccdEe

D.A、CcdEe

E.O、ccdee

答案

参考答案：E

解析：新生儿Rh溶血病进行换血疗法时，所选择的血型应该是Rh血型同母亲，ABO血型同患儿，这样输入的红细胞不会和体内已存在的抗体产生反应而导致红细胞的破坏。

阅读理解
阅读理解。
     Different types of maps have different uses.
Tourist maps, for example, have signs (标志) to
show places of interest in an area. When tourists
read these maps, it is easy for them to find where
to go and what to see in a place and it is easy for
them to go and find their ways to these places.
    Road maps show large areas so that people can
plan long journeys. Different types of roads are
given different numbers. For example, if you want
to go to Wood Green, you just follow No. 621
Road and keep looking at the road signs.
    Distribution maps (分布图) use colors or signs to
show facts about an area. For example, where
different languages are spoken, how many people
live in an area, how cold and hot some places are,
or whether a place is short of water.
     Some maps, such as railway maps, use straight
lines to show everything. This is easy for people
to read. Trains are fast. People don't have to think
about small places they go past. They just need to
know the two ends of their trips.
1. Jim wants to visit some places of interest. Which map does he need most?
A. A road map.
B. A tourist map.
C. A distribution map.
D. A railway map.
2. How can you tell different roads on Road maps?
A. By finding the numbers.
B. By using different colors.
C. By using straight lines.
D. By looking at the road signs.
3. Which of the following can Distribution maps tell us?
A. How to get to Germany.
B. How to plan a long journey.
C. Which place is short of water.
D. Where a famous museum is.
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选择题

下列属于可再生能源的是（　　）

A．煤

B．石油

C．天然气

D．沼气
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