【单选题】Which vein does not belong to The Tributaries of the Great saphenous v.?
A.
Superficial medial femoral v.
B.
Superficial lateral femoral v.
D.
lesser saphenous veins
【单选题】(2015年真题)下列选项中,不属于我国行政执法基本原则的是( )。
【简答题】自催化反应过程的最优循环比 自催化反应 A+P→P+P k=1L/(mol·min),在循环反应器中进行反应,F A0 =1mol/min,c A0 =1mol/L,c P0 =0,转化率为0.99,求: (1)最优循环比下的反应器体积; (2)当循环比为R=4时反应器体积; (3)R=∞时,反应器体积; (4)R=0时,反应器体积。
【单选题】V irtual organizations has many character, which is not belong to virtual organizations ?
【多选题】which substances belong to vitamin V
【单选题】【单选】A passenger vessel is underway. When may passengers visit the pilothouse?
A.
passengers are excluded from the pilothouse while underway
B.
passengers are permitted in the pilothouse during daylight hours only
C.
passengers are permitted to visit the pilothouse when authorized by the master and officer of the watch
D.
passengers are permitted in the pilothouse when they are escorted by a ship’s officer