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【单选题】
在带链栈中,经过一系列正常的操作后,如果top=bottom,则栈中的元素个数为:A.
1
B.
0
C.
0或1
D.
栈满
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皮皮学刷刷变学霸
举一反三
【单选题】During the cardiac cycle,
A.
the volume of blood leaving the left side of the heart is greater than that leaving the right side.
B.
the pressure of blood leaving the right side of the heart is greater than that leaving the left side.
C.
the duration of systole is greater than that of diastole.
D.
the duration of diastole is greater than that of systole.
【单选题】Which of the following occurs during ventricular systole
A.
decreased aortic pressure
B.
increased ventricular volume
C.
first heart sound
D.
P wave
【单选题】A 60-year-old man with a history of emphysema returns home from the hospital after suffering a myocardial infarction involving the apex of the left ventricle. Six months later, an echocardiogram revea...
A.
Calcific aortic stenosis
B.
Dilated cardiomyopathy
C.
Mitral valve prolapse
D.
Mural thrombus
E.
Ventricular rupture
【单选题】During the cardiac cycle of a human adult,
A.
ventricular filling depends mainly on atrial contraction
B.
the ventricle fills fastest during early diastole
C.
the atria and ventricles contract simultaneously during systole
D.
systole is initiated in the left atrium
【单选题】During the cardiac cycle,
A.
the duration of diastole is greater than that of systole.
B.
the volume of blood leaving the left side of the heart is greater than that leaving the right side.
C.
the pressure of blood leaving the right side of the heart is greater than that leaving the left side.
D.
the duration of systole is greater than that of diastole.
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