山东专升本考试难嘛？

醛固酮的主要作用是( )

A.保K+排Na+

B.保Na+排K+

C.保Na-保K+

D.保Na+排H+

E.保K+排H+

You have been badly injured in a car accident．It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident．However,special care must be taken in selecting new blood for you．If the blood is too different from your own,the transfusion could kill you.
There are four basic types of blood;A,B,AB and O．A simple test can indicate a person's blood type．Everybody is born with one of these four types of blood．Blood type,like hair color and height,is inherited from parents.
Because of substances contained in each type,the four groups must be trans fused carefully．Basically,A and B cannot be mixed．A and B cannot receive AB,but AB may receive A or B．O can give to any other group,hence it is often called the universal donor．For the opposite reason,AB sometimes called the universal recipient．However,because so many reactions can occur in transfusions,patients usually receive only salt or plasma until their blood can be matched as exactly as possible in the blood bank of a hospital．In this way,it is possible to avoid any bad reactions to the transfusion.
There is a relationship between your blood type and your nationality．Among Europeans and people of European ancestry,about 42 percent have type A while 45 percent have type O．The rarest is type AB．Other races have different percentages．For example,some American Indian groups have nearly 100 percent type O.

The word“hence”in line 10 means__.

A.always
B.often
C.therefore
D.seldom

下列资本形式中不属于职能资本的是（ ）

A.产业资本
B.商业资本
C.借贷资本
D.农业资本

人的心理活动过程包括认知过程、情绪过程和（ ）。

A.注意过程
B.意志过程
C.行动过程
D.意识过程