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【单选题】
In the early stage of ventricular enlargement, when the pumping function decreases, the appropriate evaluation index is ().
A.
The heart does work
B.
Ejection fraction
C.
Output per minute
D.
Stroke volume
E.
heart index
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参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Which of the following is a waste product normally excreted by the kidneys?（ ）
A.
Cholesterol
B.
Carbon dioxide
C.
Urea
D.
Glucose
E.
Insulin
【单选题】Which one of the following has the highest R.Q.（ ）
A.
Starch
B.
Malic acid
C.
Protein
D.
Glucose
E.
Fat
【单选题】When cells are stimulated and excited, the absolute value of the membrane potential decreases, which is called（ ）
A.
Repolarization
B.
Reverse polarization
C.
polarization
D.
Depolarization
E.
Hyperpolarization
【单选题】The basis of controlling the contractile rhythm of digestive smooth muscle is（ ）
A.
Slow wave
B.
Action potential
C.
Intramural plexus activity
D.
Sympathetic excitation
E.
Vagus nerve excitation
【单选题】Which of the following lists includes only structures that compose the anatomic dead-space?（ ）
A.
Capillaries, respiratory bronchioles, alveolar ducts, alveoli
B.
Pharynx, bronchi, alveolar ducts, larynx
C.
Pharynx, nasal cavity, trachea, bronchi
D.
Respiratory bronchioles, alveoli, trachea, nasal cavity
E.
Capillaries, respiratory bronchioles, trachea, bronchi
【单选题】The body's main mode of regulation（ ）
A.
Positive feedback regulation
B.
Neuromodulation
C.
Humoral regulation
D.
Self-regulation
E.
Negative feedback regulation
【单选题】The accelerated erythrocyte sedimentation rate was caused by（ ）
A.
Haematocytosis
B.
Swelling of red blood cells
C.
Shrinkage of red blood cells
D.
Rupture of red blood cells
E.
Erythrocyte agglutination