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【单选题】
“碳海绵”具备高弹性和疏松多孔的结构，主要成分是石墨烯和碳纳米管（两者都是碳单质）。关于“碳海绵”的说法中不正确的是A.
属于混合物，充分燃烧生成CO 2
B.
具有吸附性，属于物理性质
C.
在一定条件下可以还原氧化铜
D.
与石墨、金刚石互称为同素异形体
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】In calm breathing, the main source of inspiration resistance is
A.
alveolar liquid-air surface tension
B.
the retraction force of the elastic components of the lung
C.
elastic retraction force of thoracic cage
D.
airway resistance
【简答题】小儿体重为出生时体重的2倍、3倍、4倍分别是什么时候?
【单选题】The main factor affecting peripheral vascular resistance is
A.
Blood viscosity
B.
Large arterial elasticity
C.
The length of vessel
D.
The caliber of arteriole
【单选题】Enzyme inactivation is the main mode of resistance to:
A.
Aminoglycosides
B.
Quinolones
C.
Rifamycins
D.
Glycopeptides
【简答题】使胰岛素分泌增加的是( )A. 血钙浓度升高 B. 血钙浓度降低 C. 血糖浓度升高 C.血糖浓度降低
【单选题】Which of the following is the main mechanism of increased post-capillary resistance at the stagnant hypoxia stage of shock?
A.
the blood flow slow down
B.
increased blood viscosity
C.
RBC adhension
D.
WBC adhension to the wall of venous vessels
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