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【多选题】
人造皮肤医学上称为组织工程皮肤,其主要制作流程为:A.
通过获得自体或异体的极少量皮肤组织，
B.
将其在体外经过消化、分离、培养，获取的表皮细胞和真皮成纤维细胞，大量扩增，
C.
按细胞类型建立不同用途的细胞库，
D.
再将表皮细胞、真皮成纤维细胞复合胶原蛋白支架上，重新形成一定形态和功能并具有生命力的活体组织皮肤。
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【简答题】在粘度等级相同的情况下,使用质量高级别的润滑油比使用质量低级别的润滑油,发动机将 换油周期。
【单选题】When may a woman start her nevirapine-based treatment if she gets the single dose of nevirapine at delivery?
A.
She may start nevirapine-based treatment soon after her delivery.
B.
She may start nevirapine-based treatment within six months after her delivery.
C.
She has to wait at least six months after that nevirapine exposure.
D.
She may wait several years so as to achieve the best effect.
【单选题】Biological treatment may use __ to treat sewage (1)living organisms (2)chemicals (3)additives
A.
(1)
B.
(2)
C.
(3)
D.
(1)(2)(3)
【单选题】AIDS treatment programs may also result in ___.
A.
better drugs
B.
lower yearly cost
C.
more effective prevention
D.
greater emphasis on treatment
【简答题】在粘度等级相同的情况下,使用质量高级别的润滑油比使用质量低级别的润滑油,发动机将 磨损。
【简答题】在粘度等级相同的情况下,使用质量高级别的润滑油比使用质量低级别的润滑油,发动机将 燃油经济性
【简答题】More health care may lead to undesirable medical results because receiving treatment in hospital itself involves risks like unpredictable complications.
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