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【多选题】
下列关于慢性阻塞性肺病的叙述正确的是（）。A.
一种以不完全可逆的气道受限为病变特征的疾病
B.
目前何种药物是用于治疗慢性阻塞性肺病的主流药物：
C.
气道受限通常是进行性的
D.
其原因是由于肺组织受到有害的粉尘颗粒或气体刺激而产生的异常的炎症反应所引起
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【简答题】单词拼写 小题1:Senior people should go to hospital to have themselves e______ once a year. 小题2:Many unusual things have been found in the ________(胃) of some sharks(鲨鱼). 小题3:What do you mean by l_______ a c...
【简答题】Pretoria, South Africa – Hundreds of swimmers play in the water along a South Africa beach. Suddenly a huge shark appears off shore and heads for the bathers. Before it can get close to the swimmers, ...
【单选题】______cause(s) negative influence to South Africa?
A.
South Africa's transformation
B.
Fighting for freedom
C.
Endemic and widespread poverty
D.
The dignity of all our people
【简答题】In South Africa, changing a ______ for another has been avoided.
【单选题】What has been indicated by this incident?
A.
South Africa is a non-racial democracy.
B.
Racism is still a problem in South Africa.
C.
Police in South Africa react quickly to any criminal acts.
D.
South Africa is still a dangerous place.
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