【判断题】出借或出租包装物的摊销价值均应作为“销售费用”处理。
【单选题】Both phentolamine and phenoxybenzamine
A.
are inactive by the oral route
B.
block both α and β receptors
E.
induce vasospasm in large doses
【单选题】Phentolamine often causes an increase in heart rate and in the force of contraction by which of the following mechanisms:
A.
Directly stimulating cardiac ß 1 receptors
B.
Antagonizing the vagal transmitter
C.
Releasing histamine from mast cells, which stimulates the heart
D.
Blocking peripheral vasoconstriction, which produces reflex stimulation of the heart
【单选题】Both phentolamine and prazosin
A.
Are competitive antagonists at α1-adrenergic receptors
B.
Have potent direct vasodilator actions on vascular smooth muscle
C.
Enhance gastric acid secretion through a histamine-like effect
D.
Cause hypotension and bradycardia
E.
Are used chronically for the treatment of primary hypotension
【多选题】《古画品录》中有“古画六法”,下列属于六法之一的是()
【判断题】手握法采精时,公猪刚开始射出的清亮液体应弃去不要。
【判断题】135全自动傻瓜照相机属于平视旁轴取景照相机。
【多选题】关于代表性误差产生的原因,正确的是( )
【单选题】Phentolamine(酚妥拉明) belongs to
【判断题】V带的种类包括:Y 、 Z、A、B、C、D、E。