【单选题】The choice of the absorption or contribution approach affects the manufacturing cost per unit because the:
A.
a. manufacturing cost per unit is higher if the absorption approach is used
B.
b. manufacturing cost per unit is higher if the contribution approach is used
C.
c. manufacturing cost per unit is the same regardless of the approach
D.
d. manufacturing cost per unit is independent of the approach
【单选题】The opportunity cost of a one-unit increase in an activity
A.
is greater than the marginal benefit.
B.
is called rational cost.
C.
decreases as you do more of it.
D.
is called marginal cost.
E.
is measured by what the person is willing to give up to get one more unit of the activity.
【判断题】理想信念是精神上的钙,没有崇高的理想信念,就会导致精神上的“软骨病”( )
【单选题】A unit cost is computed by:
A.
Dividing total cost by the number of units
B.
Adding variable cost to fixed cost
C.
Multiplying total cost by the number of units
D.
Dividing variable cost by the number of units
【单选题】The marginal social cost of a unit of pollution:
A.
is the additional cost imposed on society by that unit.
B.
is easy to calculate, since pollution produces costs.
C.
is often overestimated.
D.
remains constant as more of a good is produced.
【单选题】If the total cost of producing 10 units equals $90, and the average total cost of producing 11 units equals $8.75, then the marginal cost of the eleventh unit produced:
A.
is definitely greater than the marginal cost of producing the tenth unit.
B.
is definitely less than the marginal cost of producing the tenth unit.
C.
is less than the average total cost of producing ten units.
D.
is greater than the average total cost of producing ten units.
【多选题】下列关于睾丸间质细胞的描述,正确的是
B.
细胞体积大,常成群分布在生精小管之间的睾丸间质中
【单选题】男性,15岁。双侧阴囊内空虚。B超检查:双侧睾丸下降不全,睾丸位于腹腔内。睾丸的内分泌功能是由睾丸间质细胞和支持细胞完成的,支持细胞的功能不包括