【单选题】由于两个人口子集的偏好不同,中央政府分配其供给的物品时不能达到社会福利最大化,而地方政府可以根据自己人口子集的需要提供相应的物品,从而能够实现社会福利最大化。即如果下级政府能够和上级政府一样提供同样的公共产品,那么由低级政府供给效果会更好。 用一般均衡模型证明了上述想法。
【单选题】对处理易溶气体的吸收,为了显著地提高吸收速率,应增大( )的流速。
【单选题】The relation 'is preferred to' between commodity bundles is just one example of a binary relation. Another example is the relation 'is a full brother of ' defined over the set of all human beings. Let...
A.
The relation R is reflexive, transitive, and complete.
B.
The relation R is transitive and complete but not reflexive.
C.
The relation R is transitive but not complete or reflexive
D.
The relation R is complete but not transitive or reflexive.
【单选题】What should be done as the first priority to commence a meeting?
A.
To refer to the meeting objective and goal.
B.
To make sure all attendees are present.
C.
To declare the meeting agenda and discipline.
D.
To inform. everyone about the schedule.
【单选题】甲百货公司和乙服装厂签订一份服装加工合同,由甲方负责提供样品,乙方提供面料并根据样品进行加工,4月10日交货。4月8日,乙服装厂因经营不善,资不抵债,陷于破产。该批加工的服装能否作为破产财产?( )。
D.
该批服装的一半可以作为破产财产,因为甲乙共有
【单选题】对处理易溶气体的吸收,为了显著地提高吸收速率,应增大( )的湍动程度:
【单选题】I have a lot to say ______ that problem.
【简答题】在国际贸易中,样品种类很多,根据提供方的不同,凭样品成交可分为 、 和对等样三种。