Suppose your
blood is O blood group. This means that ()...
单项选择题Suppose your
blood is O blood group. This means that ()
A．neither
agglutinogens A and B are present on your red blood cells,
B．there are both
anti-A or anti-B antibodies in your plasma,
C．your blood is Rh+,
D．you are
theoretically the universal donor,
E．all of the above.
