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【单选题】
下列电磁污染形式中不属于自然电磁污染的是( )A.
火山爆发
B.
地震
C.
雷电
D.
射频电磁污染
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【单选题】40-year-old woman survived a car crash in which her neck was hyperextended when her vehicle was struck from behind. At the emergency department, a plain radiograph of her cervical spine revealed a fra...
A.
Anterior arch of the atlas
B.
Posterior tubercle of the atlas
C.
Atlanto-occipital joint
D.
Inferior articular process of the axis
E.
Anterior tubercle of the atlas
【简答题】Delicate Arch Delicate Arch can be found in Arches National Park in Utah, USA. The arch stands alone at a height of 52 feet and is considered one of Utah's most important landmarks. In 2002, the Olymp...
【单选题】Which of posterior mediastinal structures is most closely applied to the posterior surface of the pericardial sac?
A.
Aortic arch
B.
Azygos vein
C.
Esophagus
D.
Thoracic duct
E.
Trachea
【单选题】The most sensitive receptor regulating the secretion of ADH is
A.
Osmotic pressure receptor of hypothalamic
B.
Volumetric receptors of atria and pulmonary vessels
C.
Baroreceptor of aortic arch
D.
Baroreceptor of carotid artery sinus
E.
stretch receptor of afferent glomerular arteriole
【单选题】设随机变量X1，X2，×××，Xn独立同服从参数为2的指数分布，且对所有的i= 1, 2, …,都有D(Xi)=si2
A.
2
B.
4
C.
8
D.
16
【简答题】在生长发育的形态指标中,最重要和常用的形态指标是 和体重。
【单选题】The most common type of congenital heart disease is( )
A.
tetralogy of Fallot
B.
coarctation of the arch of the aorta
C.
transposition of the great vessels
D.
ventricular septal defects
E.
pulmonary stenosis
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