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【单选题】
一氧化碳 容易引起中毒的主要原因之一是 HbCO不能带氧,且不易分解,HbO2解离速度 比 HbCO的解离速度 大很多,约为多少 倍 ( )。A.
280
B.
240
C.
3600
D.
3000
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举一反三
【单选题】What do they talk about?
A.
Daniel's financial problems
B.
Daniel's career
C.
Daniel's last vacation
【单选题】Why is Mason not worried about his future?
A.
Because he thinks he has a good job.
B.
Because he is sure things will be better in future.
C.
Because he never worries about anything.
D.
Because he doesn't believe what is said in the report.
【单选题】A: Some people are pretty dubious about the proposals.
A.
I know. We're going to have to find a way to convince them.
B.
Maybe we shouldn't talk about it.
C.
Yes, that's great.
【单选题】How does Marcie feel about her phobia?
A.
She is upset about it.
B.
She is afraid of it.
C.
She is positive about it.
【简答题】大众健美操的基本步伐根据人体运动时对地面的冲击力分为哪几种?
【单选题】John: ______ talk about at the meeting?
A.
What do they
B.
What will they
C.
What did they
【单选题】What was her nightmare about?
A.
jumping off a tall building
B.
climbing a tall building
C.
falling off a tall building
【简答题】MPEG-4 departs from its predecessors in adopting a new __________ coding: offering higher __________, and MPEG-4 videos can be composed and manipulated by operations on the visual objects.
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