【单选题】CCMP 加密比 TKIP 加密安全性高,是因为()
A.
采用了更长的 IV prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
【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】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
【单选题】Phentolamine 使血管扩张的原因是:
【单选题】CCMP加密比TKIP加密安全性高,是因为()
【判断题】过期乳液涂在指甲上会使指甲变得光亮,有益于指甲的生长。
【单选题】电弧电压增大后,弧柱直径( ),会使熔宽( )。
【判断题】The β receptor can be blocked by Phentolamine.