【单选题】对企事业单位的承包经营、承租经营的应纳税所得额是以每一纳税年度的收入总额,减除必要费用后的余额,该必要费用是( )。
【简答题】descending aorta 指( )
【简答题】ascending aorta 指( )
【判断题】Aorta, venules and veins are all subtypes of blood vessels.
【简答题】输液生产过程中主要存在哪些问题?应采取哪些措施解决?
【单选题】The following statements concerning the abdominal aorta are true except
A.
It bifurcates into the two common iliac arteries in front of the fourth lumbar vertebra.
B.
It lies on the right side of the inferior vena cava.
C.
From its anterior surface arise the celiac, superior mesenteric, and inferior mesenteric arteries.
D.
It enters the abdomen in front of the twelfth thoracic vertebra.
E.
The thoracic duct leaves the abdomen through the aortic opening of the diaphragm on the right side of the aorta.
【单选题】The aorta leaves the:
【简答题】输液生产过程中主要存在哪些问题?应采取哪些措施解决?