皮皮学，免费搜题
登录
搜题
【单选题】
生化学家的眼泪成分研究发现,眼泪可以分为两类——反射性眼泪和A.
情绪性眼泪；
B.
喜极而泣的流泪
C.
切洋葱辣出来的眼泪；
D.
因风沙揉出来的眼泪
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【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】按照整体产品的概念,产品被看作是( )。
A.
任何有形物品
B.
任何可以等价交换的服务
C.
任何可以等价交换的有形物品
D.
购买者需要得到的各种有形的利益和无形的满足感
【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.
【单选题】During systole, the ventricles contract. this cause
A.
all valves to close.
B.
AV valves to close and semilunar valves to open
C.
AV valves to open and semilunar valves to close
D.
all valves to open.
相关题目：